diff --git a/.changeset/kind-foxes-sleep.md b/.changeset/kind-foxes-sleep.md
new file mode 100644
index 000000000..29cbbb6e1
--- /dev/null
+++ b/.changeset/kind-foxes-sleep.md
@@ -0,0 +1,5 @@
+---
+"@nomicfoundation/edr": patch
+---
+
+Added support for EIP-712 payloads with signed integers
diff --git a/Cargo.lock b/Cargo.lock
index 080323942..ca2eecd18 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -44,6 +44,34 @@ version = "0.2.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0942ffc6dcaadf03badf6e6a2d0228460359d5e34b57ccdc720b7382dfbd5ec5"
 
+[[package]]
+name = "alloy-dyn-abi"
+version = "0.7.2"
+source = "git+https://github.com/alloy-rs/core?rev=85aecdf#85aecdf54c56da20f274a21f372d3d37b8c118ca"
+dependencies = [
+ "alloy-json-abi",
+ "alloy-primitives 0.7.2 (git+https://github.com/alloy-rs/core?rev=85aecdf)",
+ "alloy-sol-type-parser",
+ "alloy-sol-types 0.7.2",
+ "const-hex",
+ "derive_more",
+ "itoa",
+ "serde",
+ "serde_json",
+ "winnow 0.6.8",
+]
+
+[[package]]
+name = "alloy-json-abi"
+version = "0.7.2"
+source = "git+https://github.com/alloy-rs/core?rev=85aecdf#85aecdf54c56da20f274a21f372d3d37b8c118ca"
+dependencies = [
+ "alloy-primitives 0.7.2 (git+https://github.com/alloy-rs/core?rev=85aecdf)",
+ "alloy-sol-type-parser",
+ "serde",
+ "serde_json",
+]
+
 [[package]]
 name = "alloy-primitives"
 version = "0.5.4"
@@ -67,9 +95,9 @@ dependencies = [
 
 [[package]]
 name = "alloy-primitives"
-version = "0.7.0"
+version = "0.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "99bbad0a6b588ef4aec1b5ddbbfdacd9ef04e00b979617765b03174318ee1f3a"
+checksum = "525448f6afc1b70dd0f9d0a8145631bf2f5e434678ab23ab18409ca264cae6b3"
 dependencies = [
  "alloy-rlp",
  "bytes",
@@ -88,6 +116,27 @@ dependencies = [
  "tiny-keccak",
 ]
 
+[[package]]
+name = "alloy-primitives"
+version = "0.7.2"
+source = "git+https://github.com/alloy-rs/core?rev=85aecdf#85aecdf54c56da20f274a21f372d3d37b8c118ca"
+dependencies = [
+ "alloy-rlp",
+ "bytes",
+ "cfg-if",
+ "const-hex",
+ "derive_more",
+ "hex-literal",
+ "itoa",
+ "k256",
+ "keccak-asm",
+ "proptest",
+ "rand",
+ "ruint",
+ "serde",
+ "tiny-keccak",
+]
+
 [[package]]
 name = "alloy-rlp"
 version = "0.3.4"
@@ -118,16 +167,55 @@ checksum = "970e5cf1ca089e964d4f7f7afc7c9ad642bfb1bdc695a20b0cba3b3c28954774"
 dependencies = [
  "const-hex",
  "dunce",
- "heck",
+ "heck 0.4.1",
  "indexmap 2.2.6",
  "proc-macro-error",
  "proc-macro2",
  "quote",
  "syn 2.0.58",
- "syn-solidity",
+ "syn-solidity 0.5.4",
  "tiny-keccak",
 ]
 
+[[package]]
+name = "alloy-sol-macro"
+version = "0.7.2"
+source = "git+https://github.com/alloy-rs/core?rev=85aecdf#85aecdf54c56da20f274a21f372d3d37b8c118ca"
+dependencies = [
+ "alloy-sol-macro-input",
+ "const-hex",
+ "heck 0.4.1",
+ "indexmap 2.2.6",
+ "proc-macro-error",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.58",
+ "syn-solidity 0.7.2",
+ "tiny-keccak",
+]
+
+[[package]]
+name = "alloy-sol-macro-input"
+version = "0.7.2"
+source = "git+https://github.com/alloy-rs/core?rev=85aecdf#85aecdf54c56da20f274a21f372d3d37b8c118ca"
+dependencies = [
+ "const-hex",
+ "dunce",
+ "heck 0.5.0",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.58",
+ "syn-solidity 0.7.2",
+]
+
+[[package]]
+name = "alloy-sol-type-parser"
+version = "0.7.2"
+source = "git+https://github.com/alloy-rs/core?rev=85aecdf#85aecdf54c56da20f274a21f372d3d37b8c118ca"
+dependencies = [
+ "winnow 0.6.8",
+]
+
 [[package]]
 name = "alloy-sol-types"
 version = "0.5.4"
@@ -135,7 +223,18 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2a059d4d2c78f8f21e470772c75f9abd9ac6d48c2aaf6b278d1ead06ed9ac664"
 dependencies = [
  "alloy-primitives 0.5.4",
- "alloy-sol-macro",
+ "alloy-sol-macro 0.5.4",
+ "const-hex",
+ "serde",
+]
+
+[[package]]
+name = "alloy-sol-types"
+version = "0.7.2"
+source = "git+https://github.com/alloy-rs/core?rev=85aecdf#85aecdf54c56da20f274a21f372d3d37b8c118ca"
+dependencies = [
+ "alloy-primitives 0.7.2 (git+https://github.com/alloy-rs/core?rev=85aecdf)",
+ "alloy-sol-macro 0.7.2",
  "const-hex",
  "serde",
 ]
@@ -633,7 +732,7 @@ version = "3.2.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ae6371b8bdc8b7d3959e9cf7b22d4435ef3e79e138688421ec654acf8c81b008"
 dependencies = [
- "heck",
+ "heck 0.4.1",
  "proc-macro-error",
  "proc-macro2",
  "quote",
@@ -1118,7 +1217,8 @@ dependencies = [
 name = "edr_provider"
 version = "0.3.5"
 dependencies = [
- "alloy-sol-types",
+ "alloy-dyn-abi",
+ "alloy-sol-types 0.5.4",
  "anyhow",
  "auto_impl",
  "cargo_toml",
@@ -1127,7 +1227,6 @@ dependencies = [
  "edr_eth",
  "edr_evm",
  "edr_test_utils",
- "ethers-core",
  "indexmap 2.2.6",
  "itertools 0.12.1",
  "k256",
@@ -1242,81 +1341,6 @@ dependencies = [
  "serde_json",
 ]
 
-[[package]]
-name = "ethabi"
-version = "18.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7413c5f74cc903ea37386a8965a936cbeb334bd270862fdece542c1b2dcbc898"
-dependencies = [
- "ethereum-types",
- "hex",
- "once_cell",
- "regex",
- "serde",
- "serde_json",
- "sha3",
- "thiserror",
- "uint",
-]
-
-[[package]]
-name = "ethbloom"
-version = "0.13.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c22d4b5885b6aa2fe5e8b9329fb8d232bf739e434e6b87347c63bdd00c120f60"
-dependencies = [
- "crunchy",
- "fixed-hash",
- "impl-codec",
- "impl-rlp",
- "impl-serde",
- "scale-info",
- "tiny-keccak",
-]
-
-[[package]]
-name = "ethereum-types"
-version = "0.14.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "02d215cbf040552efcbe99a38372fe80ab9d00268e20012b79fcd0f073edd8ee"
-dependencies = [
- "ethbloom",
- "fixed-hash",
- "impl-codec",
- "impl-rlp",
- "impl-serde",
- "primitive-types",
- "scale-info",
- "uint",
-]
-
-[[package]]
-name = "ethers-core"
-version = "2.0.14"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "82d80cc6ad30b14a48ab786523af33b37f28a8623fc06afd55324816ef18fb1f"
-dependencies = [
- "arrayvec",
- "bytes",
- "chrono",
- "const-hex",
- "elliptic-curve",
- "ethabi",
- "generic-array",
- "k256",
- "num_enum",
- "open-fastrlp",
- "rand",
- "rlp",
- "serde",
- "serde_json",
- "strum",
- "tempfile",
- "thiserror",
- "tiny-keccak",
- "unicode-xid",
-]
-
 [[package]]
 name = "event-listener"
 version = "2.5.3"
@@ -1620,6 +1644,12 @@ version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8"
 
+[[package]]
+name = "heck"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
+
 [[package]]
 name = "hermit-abi"
 version = "0.1.19"
@@ -1778,24 +1808,6 @@ dependencies = [
  "parity-scale-codec",
 ]
 
-[[package]]
-name = "impl-rlp"
-version = "0.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f28220f89297a075ddc7245cd538076ee98b01f2a9c23a53a4f1105d5a322808"
-dependencies = [
- "rlp",
-]
-
-[[package]]
-name = "impl-serde"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ebc88fc67028ae3db0c853baa36269d398d5f45b6982f95549ff5def78c935cd"
-dependencies = [
- "serde",
-]
-
 [[package]]
 name = "impl-trait-for-tuples"
 version = "0.2.2"
@@ -2264,27 +2276,6 @@ dependencies = [
  "libc",
 ]
 
-[[package]]
-name = "num_enum"
-version = "0.7.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "02339744ee7253741199f897151b38e72257d13802d4ee837285cc2990a90845"
-dependencies = [
- "num_enum_derive",
-]
-
-[[package]]
-name = "num_enum_derive"
-version = "0.7.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "681030a937600a36906c185595136d26abfebb4aa9c65701cefcaf8578bb982b"
-dependencies = [
- "proc-macro-crate 3.1.0",
- "proc-macro2",
- "quote",
- "syn 2.0.58",
-]
-
 [[package]]
 name = "number_prefix"
 version = "0.4.0"
@@ -2312,31 +2303,6 @@ version = "11.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0ab1bc2a289d34bd04a330323ac98a1b4bc82c9d9fcb1e66b63caa84da26b575"
 
-[[package]]
-name = "open-fastrlp"
-version = "0.1.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "786393f80485445794f6043fd3138854dd109cc6c4bd1a6383db304c9ce9b9ce"
-dependencies = [
- "arrayvec",
- "auto_impl",
- "bytes",
- "ethereum-types",
- "open-fastrlp-derive",
-]
-
-[[package]]
-name = "open-fastrlp-derive"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "003b2be5c6c53c1cfeb0a238b8a1c3915cd410feb684457a36c10038f764bb1c"
-dependencies = [
- "bytes",
- "proc-macro2",
- "quote",
- "syn 1.0.109",
-]
-
 [[package]]
 name = "openssl"
 version = "0.10.64"
@@ -2423,7 +2389,7 @@ version = "3.6.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "be30eaf4b0a9fba5336683b38de57bb86d179a35862ba6bfcf57625d006bde5b"
 dependencies = [
- "proc-macro-crate 2.0.0",
+ "proc-macro-crate",
  "proc-macro2",
  "quote",
  "syn 1.0.109",
@@ -2585,22 +2551,9 @@ checksum = "0b34d9fd68ae0b74a41b21c03c2f62847aa0ffea044eee893b4c140b37e244e2"
 dependencies = [
  "fixed-hash",
  "impl-codec",
- "impl-rlp",
- "impl-serde",
- "scale-info",
  "uint",
 ]
 
-[[package]]
-name = "proc-macro-crate"
-version = "1.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7f4c021e1093a56626774e81216a4ce732a735e5bad4868a03f3ed65ca0c3919"
-dependencies = [
- "once_cell",
- "toml_edit 0.19.15",
-]
-
 [[package]]
 name = "proc-macro-crate"
 version = "2.0.0"
@@ -2610,15 +2563,6 @@ dependencies = [
  "toml_edit 0.20.7",
 ]
 
-[[package]]
-name = "proc-macro-crate"
-version = "3.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6d37c51ca738a55da99dc0c4a34860fd675453b8b36209178c2249bb13651284"
-dependencies = [
- "toml_edit 0.21.1",
-]
-
 [[package]]
 name = "proc-macro-error"
 version = "1.0.4"
@@ -2962,7 +2906,7 @@ name = "revm-primitives"
 version = "3.1.1"
 source = "git+https://github.com/NomicFoundation/revm?rev=aceb093#aceb0939b1712faa0e8f45c1f5621c11b81df94e"
 dependencies = [
- "alloy-primitives 0.7.0",
+ "alloy-primitives 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "auto_impl",
  "bitflags 2.5.0",
  "bitvec",
@@ -3003,21 +2947,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bb919243f34364b6bd2fc10ef797edbfa75f33c252e7998527479c6d6b47e1ec"
 dependencies = [
  "bytes",
- "rlp-derive",
  "rustc-hex",
 ]
 
-[[package]]
-name = "rlp-derive"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e33d7b2abe0c340d8797fe2907d3f20d3b5ea5908683618bfe80df7f621f672a"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn 1.0.109",
-]
-
 [[package]]
 name = "rpds"
 version = "1.1.0"
@@ -3109,12 +3041,6 @@ dependencies = [
  "base64",
 ]
 
-[[package]]
-name = "rustversion"
-version = "1.0.15"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "80af6f9131f277a45a3fba6ce8e2258037bb0477a67e610d3c1fe046ab31de47"
-
 [[package]]
 name = "rusty-fork"
 version = "0.3.0"
@@ -3142,30 +3068,6 @@ dependencies = [
  "winapi-util",
 ]
 
-[[package]]
-name = "scale-info"
-version = "2.11.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "788745a868b0e751750388f4e6546eb921ef714a4317fa6954f7cde114eb2eb7"
-dependencies = [
- "cfg-if",
- "derive_more",
- "parity-scale-codec",
- "scale-info-derive",
-]
-
-[[package]]
-name = "scale-info-derive"
-version = "2.11.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7dc2f4e8bc344b9fc3d5f74f72c2e55bfc38d28dc2ebc69c194a3df424e4d9ac"
-dependencies = [
- "proc-macro-crate 1.3.1",
- "proc-macro2",
- "quote",
- "syn 1.0.109",
-]
-
 [[package]]
 name = "schannel"
 version = "0.1.23"
@@ -3428,28 +3330,6 @@ version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
 
-[[package]]
-name = "strum"
-version = "0.26.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5d8cec3501a5194c432b2b7976db6b7d10ec95c253208b45f83f7136aa985e29"
-dependencies = [
- "strum_macros",
-]
-
-[[package]]
-name = "strum_macros"
-version = "0.26.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c6cf59daf282c0a494ba14fd21610a0325f9f90ec9d1231dea26bcb1d696c946"
-dependencies = [
- "heck",
- "proc-macro2",
- "quote",
- "rustversion",
- "syn 2.0.58",
-]
-
 [[package]]
 name = "substrate-bn"
 version = "0.6.0"
@@ -3503,6 +3383,17 @@ dependencies = [
  "syn 2.0.58",
 ]
 
+[[package]]
+name = "syn-solidity"
+version = "0.7.2"
+source = "git+https://github.com/alloy-rs/core?rev=85aecdf#85aecdf54c56da20f274a21f372d3d37b8c118ca"
+dependencies = [
+ "paste",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.58",
+]
+
 [[package]]
 name = "sync_wrapper"
 version = "0.1.2"
@@ -3738,7 +3629,7 @@ dependencies = [
  "serde",
  "serde_spanned",
  "toml_datetime",
- "winnow",
+ "winnow 0.5.40",
 ]
 
 [[package]]
@@ -3749,18 +3640,7 @@ checksum = "70f427fce4d84c72b5b732388bf4a9f4531b53f74e2887e3ecb2481f68f66d81"
 dependencies = [
  "indexmap 2.2.6",
  "toml_datetime",
- "winnow",
-]
-
-[[package]]
-name = "toml_edit"
-version = "0.21.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6a8534fd7f78b5405e860340ad6575217ce99f38d4d5c8f2442cb5ecb50090e1"
-dependencies = [
- "indexmap 2.2.6",
- "toml_datetime",
- "winnow",
+ "winnow 0.5.40",
 ]
 
 [[package]]
@@ -3950,12 +3830,6 @@ version = "0.1.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e51733f11c9c4f72aa0c160008246859e340b00807569a0da0e7a1079b27ba85"
 
-[[package]]
-name = "unicode-xid"
-version = "0.2.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f962df74c8c05a667b5ee8bcf162993134c104e96440b663c8daa176dc772d8c"
-
 [[package]]
 name = "url"
 version = "2.5.0"
@@ -4300,6 +4174,15 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "winnow"
+version = "0.6.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c3c52e9c97a68071b23e836c9380edae937f17b9c4667bd021973efc689f618d"
+dependencies = [
+ "memchr",
+]
+
 [[package]]
 name = "winreg"
 version = "0.50.0"
diff --git a/crates/edr_provider/Cargo.toml b/crates/edr_provider/Cargo.toml
index 7d0703aec..44f841c1d 100644
--- a/crates/edr_provider/Cargo.toml
+++ b/crates/edr_provider/Cargo.toml
@@ -4,6 +4,8 @@ version = "0.3.5"
 edition = "2021"
 
 [dependencies]
+# TODO switch to Cargo version https://github.com/NomicFoundation/edr/issues/445
+alloy-dyn-abi = { git = "https://github.com/alloy-rs/core", rev = "85aecdf", features = ["eip712"] }
 alloy-sol-types = { version = "0.5.1", default-features = false, features = ["std"] }
 anyhow = { version = "1.0.75", optional = true }
 auto_impl = { version = "1.2", default-features = false }
@@ -11,7 +13,6 @@ dyn-clone = { version = "1.0.13", default-features = false }
 edr_defaults = { version = "0.3.5", path = "../edr_defaults" }
 edr_eth = { version = "0.3.5", path = "../edr_eth", features = ["rand"] }
 edr_evm = { version = "0.3.5", path = "../edr_evm", features = ["tracing"] }
-ethers-core = {  version = "2.0.12" , features = ["eip712"] }
 indexmap = { version = "2.0.0", default-features = false, features = ["std"] }
 itertools = { version = "0.12.0", default-features = false, features = ["use_alloc"] }
 k256 = { version = "0.13.1", default-features = false, features = ["arithmetic", "ecdsa", "pem", "pkcs8", "precomputed-tables", "std"] }
diff --git a/crates/edr_provider/src/data.rs b/crates/edr_provider/src/data.rs
index bab1a2257..8f0096048 100644
--- a/crates/edr_provider/src/data.rs
+++ b/crates/edr_provider/src/data.rs
@@ -12,6 +12,7 @@ use std::{
     time::{Duration, Instant, SystemTime, UNIX_EPOCH},
 };
 
+use alloy_dyn_abi::eip712::TypedData;
 use edr_eth::{
     block::{
         calculate_next_base_fee_per_blob_gas, calculate_next_base_fee_per_gas, miner_reward,
@@ -49,7 +50,6 @@ use edr_evm::{
     OrderedTransaction, RandomHashGenerator, StorageSlot, SyncBlock, TracerEip3155, TxEnv,
     KECCAK_EMPTY,
 };
-use ethers_core::types::transaction::eip712::{Eip712, TypedData};
 use gas::gas_used_ratio;
 use indexmap::IndexMap;
 use itertools::izip;
@@ -1774,7 +1774,14 @@ impl<LoggerErrorT: Debug, TimerT: Clone + TimeSinceEpoch> ProviderData<LoggerErr
     ) -> Result<Signature, ProviderError<LoggerErrorT>> {
         match self.local_accounts.get(address) {
             Some(secret_key) => {
-                let hash: B256 = message.encode_eip712()?.into();
+                let hash: B256 = message
+                    // TODO https://github.com/NomicFoundation/edr/issues/445
+                    // This returns B256, but we're currently using the EIP-712 types for Alloy from
+                    // Git, so we need to convert it to a slice before converting to our B256.
+                    .eip712_signing_hash()?
+                    .as_slice()
+                    .try_into()
+                    .expect("Git and released version of B256 are compatible");
                 Ok(Signature::new(RecoveryMessage::Hash(hash), secret_key)?)
             }
             None => Err(ProviderError::UnknownAddress { address: *address }),
diff --git a/crates/edr_provider/src/error.rs b/crates/edr_provider/src/error.rs
index a8fb27c92..6457fd5f7 100644
--- a/crates/edr_provider/src/error.rs
+++ b/crates/edr_provider/src/error.rs
@@ -14,7 +14,6 @@ use edr_evm::{
     DebugTraceError, ExecutionResult, HaltReason, MemPoolAddTransactionError, MineBlockError,
     MineTransactionError, OutOfGasError, TransactionCreationError, TransactionError,
 };
-use ethers_core::types::transaction::eip712::Eip712Error;
 
 use crate::{data::CreationError, IntervalConfigConversionError};
 
@@ -61,7 +60,7 @@ pub enum ProviderError<LoggerErrorT> {
     #[error("An EIP-4844 (shard blob) transaction is missing the to (receiver) parameter.")]
     Eip4844TransactionMissingReceiver,
     #[error(transparent)]
-    Eip712Error(#[from] Eip712Error),
+    Eip712Error(#[from] alloy_dyn_abi::Error),
     /// A transaction error occurred while estimating gas.
     #[error(transparent)]
     EstimateGasTransactionFailure(#[from] EstimateGasFailure),
diff --git a/crates/edr_provider/src/requests/eth/sign.rs b/crates/edr_provider/src/requests/eth/sign.rs
index 4aff0b285..0ef0fcce7 100644
--- a/crates/edr_provider/src/requests/eth/sign.rs
+++ b/crates/edr_provider/src/requests/eth/sign.rs
@@ -1,7 +1,7 @@
 use core::fmt::Debug;
 
+use alloy_dyn_abi::eip712::TypedData;
 use edr_eth::{Address, Bytes};
-use ethers_core::types::transaction::eip712::TypedData;
 
 use crate::{data::ProviderData, time::TimeSinceEpoch, ProviderError};
 
diff --git a/crates/edr_provider/src/requests/methods.rs b/crates/edr_provider/src/requests/methods.rs
index 9314784ef..ff970845f 100644
--- a/crates/edr_provider/src/requests/methods.rs
+++ b/crates/edr_provider/src/requests/methods.rs
@@ -1,3 +1,4 @@
+use alloy_dyn_abi::eip712::TypedData;
 use edr_eth::{
     remote::{
         eth::CallRequest,
@@ -8,7 +9,6 @@ use edr_eth::{
     transaction::EthTransactionRequest,
     Address, Bytes, B256, U256, U64,
 };
-use ethers_core::types::transaction::eip712::TypedData;
 
 use super::serde::RpcAddress;
 use crate::requests::{
@@ -222,7 +222,7 @@ pub enum MethodInvocation {
     #[serde(rename = "eth_signTypedData_v4")]
     SignTypedDataV4(
         #[serde(deserialize_with = "crate::requests::serde::deserialize_address")] Address,
-        #[serde(deserialize_with = "crate::requests::serde::typed_data::deserialize")] TypedData,
+        #[serde(deserialize_with = "crate::requests::serde::deserialize_typed_data")] TypedData,
     ),
     /// `eth_subscribe`
     #[serde(rename = "eth_subscribe")]
diff --git a/crates/edr_provider/src/requests/serde.rs b/crates/edr_provider/src/requests/serde.rs
index 4bf0a5d36..0416bbed4 100644
--- a/crates/edr_provider/src/requests/serde.rs
+++ b/crates/edr_provider/src/requests/serde.rs
@@ -4,6 +4,7 @@ use std::{
     str::FromStr,
 };
 
+use alloy_dyn_abi::TypedData;
 use edr_eth::{Address, Bytes, U256, U64};
 use serde::{Deserialize, Deserializer, Serialize};
 
@@ -410,137 +411,17 @@ pub(crate) mod storage_value {
     }
 }
 
-/// Helper module for deserializing the payload of an `eth_signTypedData_v4`
-/// request. The types and the deserializer implementation are a patched version
-/// of [`ethers_core`](https://github.com/gakonst/ethers-rs/blob/5394d899adca736a602e316e6f0c06fdb5aa64b9/ethers-core/src/types/transaction/eip712.rs)
-/// in order to support hex strings for the salt parameter.
-/// `ethers_core` is copyright (c) 2020 Georgios Konstantopoulos and is licensed
-/// under the MIT License.
-pub(crate) mod typed_data {
-    use std::collections::BTreeMap;
-
-    use edr_eth::Bytes;
-    use ethers_core::types::transaction::eip712::{EIP712Domain, TypedData, Types};
-    use serde::{Deserialize, Deserializer};
-
-    #[derive(Debug, Deserialize)]
-    #[serde(rename_all = "camelCase")]
-    struct PatchedEIP712Domain {
-        #[serde(default, skip_serializing_if = "Option::is_none")]
-        name: Option<String>,
-
-        #[serde(default, skip_serializing_if = "Option::is_none")]
-        version: Option<String>,
-
-        #[serde(
-            default,
-            skip_serializing_if = "Option::is_none",
-            deserialize_with = "ethers_core::types::serde_helpers::deserialize_stringified_numeric_opt"
-        )]
-        chain_id: Option<ethers_core::types::U256>,
-
-        #[serde(default, skip_serializing_if = "Option::is_none")]
-        verifying_contract: Option<ethers_core::types::Address>,
-
-        // Changed salt from `[u8; 32]` to `Bytes` to support hex strings.
-        #[serde(default, skip_serializing_if = "Option::is_none")]
-        salt: Option<Bytes>,
-    }
-
-    #[derive(Debug, thiserror::Error)]
-    #[error("The salt parameter must be exactly 32 bytes long.")]
-    struct InvalidSaltError;
-
-    impl TryFrom<PatchedEIP712Domain> for EIP712Domain {
-        type Error = InvalidSaltError;
-
-        fn try_from(value: PatchedEIP712Domain) -> Result<Self, Self::Error> {
-            let PatchedEIP712Domain {
-                name,
-                version,
-                chain_id,
-                verifying_contract,
-                salt,
-            } = value;
-
-            let salt: Option<[u8; 32]> = salt
-                .map(|bytes| {
-                    let vec: Vec<u8> = bytes.into();
-                    vec.try_into().map_err(|_error| InvalidSaltError {})
-                })
-                .transpose()?;
-
-            Ok(EIP712Domain {
-                name,
-                version,
-                chain_id,
-                verifying_contract,
-                salt,
-            })
-        }
-    }
-
-    #[derive(Deserialize)]
-    struct TypedDataHelper {
-        domain: PatchedEIP712Domain,
-        types: Types,
-        #[serde(rename = "primaryType")]
-        primary_type: String,
-        message: BTreeMap<String, serde_json::Value>,
-    }
-
-    #[derive(Deserialize)]
-    #[serde(untagged)]
-    enum Type {
-        Val(TypedDataHelper),
-        String(String),
-    }
-
-    fn invalid_json_error<'de, DeserializerT: Deserializer<'de>>(
-        _error: impl std::error::Error,
-    ) -> DeserializerT::Error {
+/// Helper function for deserializing the payload of an `eth_signTypedData_v4`
+/// request.
+pub(crate) fn deserialize_typed_data<'de, DeserializerT>(
+    deserializer: DeserializerT,
+) -> Result<TypedData, DeserializerT::Error>
+where
+    DeserializerT: Deserializer<'de>,
+{
+    TypedData::deserialize(deserializer).map_err(|_error| {
         serde::de::Error::custom("The message parameter is an invalid JSON.".to_string())
-    }
-
-    /// Helper function for deserializing the payload of an
-    /// `eth_signTypedData_v4` request.
-    pub(crate) fn deserialize<'de, DeserializerT>(
-        deserializer: DeserializerT,
-    ) -> Result<TypedData, DeserializerT::Error>
-    where
-        DeserializerT: Deserializer<'de>,
-    {
-        match Type::deserialize(deserializer).map_err(invalid_json_error::<'de, DeserializerT>)? {
-            Type::Val(v) => {
-                let TypedDataHelper {
-                    domain,
-                    types,
-                    primary_type,
-                    message,
-                } = v;
-                Ok(TypedData {
-                    domain: domain.try_into().map_err(serde::de::Error::custom)?,
-                    types,
-                    primary_type,
-                    message,
-                })
-            }
-            Type::String(s) => {
-                let TypedDataHelper {
-                    domain,
-                    types,
-                    primary_type,
-                    message,
-                } = serde_json::from_str(&s).map_err(invalid_json_error::<'de, DeserializerT>)?;
-                Ok(TypedData {
-                    domain: domain.try_into().map_err(serde::de::Error::custom)?,
-                    types,
-                    primary_type,
-                    message,
-                })
-            }
-        }
-    }
+    })
 }
 
 fn invalid_hex<'de, D>(value: &str) -> D::Error
diff --git a/crates/edr_provider/tests/issue_407.rs b/crates/edr_provider/tests/issue_407.rs
new file mode 100644
index 000000000..dc58299b8
--- /dev/null
+++ b/crates/edr_provider/tests/issue_407.rs
@@ -0,0 +1,137 @@
+#![cfg(feature = "test-utils")]
+
+use edr_provider::{test_utils::create_test_config, time::CurrentTime, NoopLogger, Provider};
+use serde_json::json;
+use tokio::runtime;
+
+// https://github.com/NomicFoundation/edr/issues/407
+
+#[tokio::test(flavor = "multi_thread")]
+async fn issue_407_uint() -> anyhow::Result<()> {
+    let config = create_test_config();
+    let logger = Box::new(NoopLogger);
+    let subscriber = Box::new(|_event| {});
+    let provider = Provider::new(
+        runtime::Handle::current(),
+        logger,
+        subscriber,
+        config,
+        CurrentTime,
+    )?;
+
+    let request_with_uint = json!({
+      "method": "eth_signTypedData_v4",
+      "params": [
+        "0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266",
+        {
+          "types": {
+            "Test": [
+              {
+                "name": "amount",
+                "type": "uint256"
+              }
+            ],
+            "EIP712Domain": [
+              {
+                "name": "name",
+                "type": "string"
+              },
+              {
+                "name": "version",
+                "type": "string"
+              },
+              {
+                "name": "chainId",
+                "type": "uint256"
+              },
+              {
+                "name": "verifyingContract",
+                "type": "address"
+              }
+            ]
+          },
+          "domain": {
+            "name": "TestName",
+            "version": "1",
+            "chainId": "0x7a69",
+            "verifyingContract": "0x1111111111111111111111111111111111111111"
+          },
+          "primaryType": "Test",
+          "message": {
+            "amount": "1234"
+          }
+        }
+      ]
+    });
+
+    let response = provider.handle_request(serde_json::from_value(request_with_uint)?)?;
+
+    assert_eq!(response.result, "0x2d9b08a9086931cc3ebb9ae446d440e43f0e4ca0abedd2d973af8278c5471bb54181a8dae6018d14d29d62facc535fbba5b4010cdb3f06c0ddcf72e2663583361b");
+
+    Ok(())
+}
+
+#[tokio::test(flavor = "multi_thread")]
+async fn issue_407_int() -> anyhow::Result<()> {
+    let config = create_test_config();
+    let logger = Box::new(NoopLogger);
+    let subscriber = Box::new(|_event| {});
+    let provider = Provider::new(
+        runtime::Handle::current(),
+        logger,
+        subscriber,
+        config,
+        CurrentTime,
+    )?;
+
+    let request_with_uint = json!({
+      "method": "eth_signTypedData_v4",
+      "params": [
+        "0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266",
+        {
+          "types": {
+            "Test": [
+              {
+                "name": "amount",
+                "type": "int256"
+              }
+            ],
+            "EIP712Domain": [
+              {
+                "name": "name",
+                "type": "string"
+              },
+              {
+                "name": "version",
+                "type": "string"
+              },
+              {
+                "name": "chainId",
+                "type": "uint256"
+              },
+              {
+                "name": "verifyingContract",
+                "type": "address"
+              }
+            ]
+          },
+          "domain": {
+            "name": "TestName",
+            "version": "1",
+            "chainId": "0x7a69",
+            "verifyingContract": "0x1111111111111111111111111111111111111111"
+          },
+          "primaryType": "Test",
+          "message": {
+            "amount": "1234"
+          }
+        }
+      ]
+    });
+
+    let response = provider.handle_request(serde_json::from_value(request_with_uint)?)?;
+
+    assert_eq!(response.result, "0x30622c2e4318a3ffb2755ca111f42409bd5a4190b4b8a9b5f42227313708ecb54889d229dfb7dcfb246f15e7567ef7471fb26a7e99d83631d266a144502ee29f1c");
+
+    Ok(())
+}