diff --git a/lang/rust/Cargo.lock b/lang/rust/Cargo.lock
index 97d5772fb8f..4b98eac35f4 100644
--- a/lang/rust/Cargo.lock
+++ b/lang/rust/Cargo.lock
@@ -1306,9 +1306,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.77"
+version = "2.0.78"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9f35bcdf61fd8e7be6caf75f429fdca8beb3ed76584befb503b1569faee373ed"
+checksum = "81b9b4733a9c8b8aaa20634df36eeb68cc0c0669f2e18fb287006b496a14195d"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/lang/rust/avro_derive/Cargo.toml b/lang/rust/avro_derive/Cargo.toml
index 6ca57bfaf15..d7cb6b2eb15 100644
--- a/lang/rust/avro_derive/Cargo.toml
+++ b/lang/rust/avro_derive/Cargo.toml
@@ -37,7 +37,7 @@ darling = { default-features = false, version = "0.20.10" }
 proc-macro2 = { default-features = false, version = "1.0.86" }
 quote = { default-features = false, version = "1.0.37" }
 serde_json = { workspace = true }
-syn = { default-features = false, version = "2.0.77", features = ["full", "fold"] }
+syn = { default-features = false, version = "2.0.78", features = ["full", "fold"] }
 
 [dev-dependencies]
 apache-avro = { default-features = false, path = "../avro", features = ["derive"] }