diff --git a/Cargo.lock b/Cargo.lock
index adf9b17..85e896a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -70,7 +70,7 @@ dependencies = [
  "itertools",
  "proc-macro2",
  "quote",
- "syn 2.0.52",
+ "syn 2.0.79",
 ]
 
 [[package]]
@@ -99,18 +99,18 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.78"
+version = "1.0.86"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e2422ad645d89c99f8f3e6b88a9fdeca7fabeac836b1002371c4367c8f984aae"
+checksum = "5e719e8df665df0d1c8fbfd238015744736151d4445ec0836b8e628aae103b77"
 dependencies = [
  "unicode-ident",
 ]
 
 [[package]]
 name = "quote"
-version = "1.0.35"
+version = "1.0.37"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "291ec9ab5efd934aaf503a6466c5d5251535d108ee747472c3977cc5acc868ef"
+checksum = "b5b9d34b8991d19d98081b46eacdd8eb58c6f2b201139f7c5f643cc155a633af"
 dependencies = [
  "proc-macro2",
 ]
@@ -143,9 +143,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.52"
+version = "2.0.79"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b699d15b36d1f02c3e7c69f8ffef53de37aefae075d8488d4ba1a7788d574a07"
+checksum = "89132cd0bf050864e1d38dc3bbc07a0eb8e7530af26344d3d2bbbef83499f590"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -154,22 +154,22 @@ dependencies = [
 
 [[package]]
 name = "thiserror"
-version = "1.0.57"
+version = "1.0.64"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e45bcbe8ed29775f228095caf2cd67af7a4ccf756ebff23a306bf3e8b47b24b"
+checksum = "d50af8abc119fb8bb6dbabcfa89656f46f84aa0ac7688088608076ad2b459a84"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.57"
+version = "1.0.64"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a953cb265bef375dae3de6663da4d3804eee9682ea80d8e2542529b73c531c81"
+checksum = "08904e7672f5eb876eaaf87e0ce17857500934f4981c4a0ab2b4aa98baac7fc3"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.52",
+ "syn 2.0.79",
 ]
 
 [[package]]
diff --git a/crates/oaclt/Cargo.toml b/crates/oaclt/Cargo.toml
index bca4e57..4d03e35 100644
--- a/crates/oaclt/Cargo.toml
+++ b/crates/oaclt/Cargo.toml
@@ -4,13 +4,13 @@ version = "0.0.0"
 edition = "2021"
 license = "MIT OR Apache-2.0"
 publish = false
-rust-version = "1.73.0"
+rust-version = "1.81.0"
 
 [dependencies]
 derive_more = "0.99.17"
 duplicate = "1.0.0"
 oaclt_macros = { path = "../oaclt_macros" }
-thiserror = "1.0.49"
+thiserror = "1.0.64"
 
 [dependencies.windows]
 version = "0.51.1"
diff --git a/crates/oaclt_macros/Cargo.toml b/crates/oaclt_macros/Cargo.toml
index ec0fafa..938624f 100644
--- a/crates/oaclt_macros/Cargo.toml
+++ b/crates/oaclt_macros/Cargo.toml
@@ -4,13 +4,13 @@ version = "0.0.0"
 edition = "2021"
 license = "MIT OR Apache-2.0"
 publish = false
-rust-version = "1.73.0"
+rust-version = "1.81.0"
 
 [lib]
 proc-macro = true
 
 [dependencies]
 itertools = "0.11.0"
-proc-macro2 = "1.0.69"
-quote = "1.0.33"
-syn = "2.0.38"
+proc-macro2 = "1.0.86"
+quote = "1.0.37"
+syn = "2.0.79"
diff --git a/rust-toolchain b/rust-toolchain
index 5e3a425..dbd4126 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1 +1 @@
-1.73.0
+1.81.0