diff --git a/Cargo.lock b/Cargo.lock
index 1302f6edc48e..da9cf9cf2c55 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -436,7 +436,7 @@ dependencies = [
  "pathdiff",
  "serde",
  "serde_json",
- "toml_edit 0.17.1",
+ "toml_edit 0.21.1",
 ]
 
 [[package]]
@@ -2208,7 +2208,7 @@ dependencies = [
  "tabular",
  "target-spec",
  "toml 0.5.11",
- "toml_edit 0.17.1",
+ "toml_edit 0.21.1",
  "twox-hash",
 ]
 
@@ -2699,15 +2699,6 @@ dependencies = [
  "minimal-lexical",
 ]
 
-[[package]]
-name = "nom8"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ae01545c9c7fc4486ab7debaf2aad7003ac19431791868fb2e8066df97fad2f8"
-dependencies = [
- "memchr",
-]
-
 [[package]]
 name = "normpath"
 version = "1.1.1"
@@ -3905,16 +3896,10 @@ checksum = "c6a4b9e8023eb94392d3dca65d717c53abc5dad49c07cb65bb8fcd87115fa325"
 dependencies = [
  "serde",
  "serde_spanned",
- "toml_datetime 0.6.5",
+ "toml_datetime",
  "toml_edit 0.21.1",
 ]
 
-[[package]]
-name = "toml_datetime"
-version = "0.5.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4553f467ac8e3d374bc9a177a26801e5d0f9b211aa1673fb137a403afd1c9cf5"
-
 [[package]]
 name = "toml_datetime"
 version = "0.6.5"
@@ -3924,18 +3909,6 @@ dependencies = [
  "serde",
 ]
 
-[[package]]
-name = "toml_edit"
-version = "0.17.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a34cc558345efd7e88b9eda9626df2138b80bb46a7606f695e751c892bc7dac6"
-dependencies = [
- "indexmap 1.9.3",
- "itertools 0.10.5",
- "nom8",
- "toml_datetime 0.5.1",
-]
-
 [[package]]
 name = "toml_edit"
 version = "0.20.7"
@@ -3945,7 +3918,7 @@ dependencies = [
  "indexmap 2.2.2",
  "serde",
  "serde_spanned",
- "toml_datetime 0.6.5",
+ "toml_datetime",
  "winnow",
 ]
 
@@ -3958,7 +3931,7 @@ dependencies = [
  "indexmap 2.2.2",
  "serde",
  "serde_spanned",
- "toml_datetime 0.6.5",
+ "toml_datetime",
  "winnow",
 ]
 
diff --git a/cargo-guppy/Cargo.toml b/cargo-guppy/Cargo.toml
index e87e0cb2e354..23f7055c3e2d 100644
--- a/cargo-guppy/Cargo.toml
+++ b/cargo-guppy/Cargo.toml
@@ -18,5 +18,5 @@ itertools = "0.12.0"
 pathdiff = { version = "0.2.1", features = ["camino"] }
 serde = { version = "1.0.193", features = ["derive"] }
 serde_json = "1.0.108"
-toml_edit = "0.17.1"
+toml_edit = "0.21.1"
 guppy-workspace-hack.workspace = true
diff --git a/tools/hakari/Cargo.toml b/tools/hakari/Cargo.toml
index 68809a7d063d..5f4002f2cfaa 100644
--- a/tools/hakari/Cargo.toml
+++ b/tools/hakari/Cargo.toml
@@ -42,7 +42,7 @@ serde = { version = "1.0.193", features = ["derive"], optional = true }
 tabular = { version = "0.2.0", features = ["ansi-cell"], optional = true }
 target-spec = { version = "3.0.1", path = "../../target-spec" }
 toml = { version = "0.5.11", optional = true }
-toml_edit = "0.17.1"
+toml_edit = "0.21.1"
 twox-hash = { version = "1.6.3", default-features = false }
 guppy-workspace-hack.workspace = true