diff --git a/lang/rust/Cargo.lock b/lang/rust/Cargo.lock
index a0988c9a5a7..c169a6d64f4 100644
--- a/lang/rust/Cargo.lock
+++ b/lang/rust/Cargo.lock
@@ -924,9 +924,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.84"
+version = "1.0.85"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ec96c6a92621310b51366f1e28d05ef11489516e93be030060e5fc12024a49d6"
+checksum = "22244ce15aa966053a896d1accb3a6e68469b97c7f33f284b99f0d576879fc23"
 dependencies = [
  "unicode-ident",
 ]
diff --git a/lang/rust/avro_derive/Cargo.toml b/lang/rust/avro_derive/Cargo.toml
index 80d5375ab18..074263ce0f7 100644
--- a/lang/rust/avro_derive/Cargo.toml
+++ b/lang/rust/avro_derive/Cargo.toml
@@ -34,7 +34,7 @@ proc-macro = true
 
 [dependencies]
 darling = { default-features = false, version = "0.20.9" }
-proc-macro2 = { default-features = false, version = "1.0.84" }
+proc-macro2 = { default-features = false, version = "1.0.85" }
 quote = { default-features = false, version = "1.0.36" }
 serde_json = { workspace = true }
 syn = { default-features = false, version = "2.0.66", features = ["full", "fold"] }