diff --git a/Cargo.lock b/Cargo.lock
index 0a644f747615..f5b6089d0d5b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -388,7 +388,7 @@ dependencies = [
  "pathdiff",
  "serde",
  "serde_json",
- "toml_edit 0.17.1",
+ "toml_edit 0.20.6",
 ]
 
 [[package]]
@@ -2036,7 +2036,7 @@ dependencies = [
  "tabular",
  "target-spec",
  "toml 0.5.11",
- "toml_edit 0.17.1",
+ "toml_edit 0.20.6",
  "twox-hash",
 ]
 
@@ -2528,15 +2528,6 @@ 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 = "nu-ansi-term"
 version = "0.46.0"
@@ -3701,47 +3692,40 @@ checksum = "c17e963a819c331dcacd7ab957d80bc2b9a9c1e71c804826d2f283dd65306542"
 dependencies = [
  "serde",
  "serde_spanned",
- "toml_datetime 0.6.3",
+ "toml_datetime",
  "toml_edit 0.19.14",
 ]
 
 [[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 = "0.6.3"
+version = "0.6.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7cda73e2f1397b1262d6dfdcef8aafae14d1de7748d66822d3bfeeb6d03e5e4b"
+checksum = "3550f4e9685620ac18a50ed434eb3aec30db8ba93b0287467bca5826ea25baf1"
 dependencies = [
  "serde",
 ]
 
 [[package]]
 name = "toml_edit"
-version = "0.17.1"
+version = "0.19.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a34cc558345efd7e88b9eda9626df2138b80bb46a7606f695e751c892bc7dac6"
+checksum = "f8123f27e969974a3dfba720fdb560be359f57b44302d280ba72e76a74480e8a"
 dependencies = [
- "indexmap 1.9.3",
- "itertools 0.10.5",
- "nom8",
- "toml_datetime 0.5.1",
+ "indexmap 2.0.2",
+ "serde",
+ "serde_spanned",
+ "toml_datetime",
+ "winnow",
 ]
 
 [[package]]
 name = "toml_edit"
-version = "0.19.14"
+version = "0.20.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f8123f27e969974a3dfba720fdb560be359f57b44302d280ba72e76a74480e8a"
+checksum = "36a7def1fbe5c7eea75367e39c1d176817dba63e096f4e440bf16606d2292761"
 dependencies = [
  "indexmap 2.0.2",
- "serde",
- "serde_spanned",
- "toml_datetime 0.6.3",
+ "toml_datetime",
  "winnow",
 ]
 
diff --git a/cargo-guppy/Cargo.toml b/cargo-guppy/Cargo.toml
index 6733e395e656..7ac1b4980c8d 100644
--- a/cargo-guppy/Cargo.toml
+++ b/cargo-guppy/Cargo.toml
@@ -17,5 +17,5 @@ itertools = "0.11.0"
 pathdiff = { version = "0.2.1", features = ["camino"] }
 serde = { version = "1.0.190", features = ["derive"] }
 serde_json = "1.0.107"
-toml_edit = "0.17.1"
+toml_edit = "0.20.6"
 guppy-workspace-hack.workspace = true
diff --git a/tools/hakari/Cargo.toml b/tools/hakari/Cargo.toml
index b793dad630c7..2700f1e5bd2a 100644
--- a/tools/hakari/Cargo.toml
+++ b/tools/hakari/Cargo.toml
@@ -41,7 +41,7 @@ serde = { version = "1.0.190", 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 = "0.20.6"
 twox-hash = { version = "1.6.3", default-features = false }
 guppy-workspace-hack.workspace = true