diff --git a/Cargo.lock b/Cargo.lock
index a386b64..0e3a464 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -230,9 +230,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.24"
+version = "1.0.33"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e0704ee1a7e00d7bb417d0770ea303c1bccbabf0ef1667dae92b5967f5f8a71"
+checksum = "fb37d2df5df740e582f28f8560cf425f52bb267d872fe58358eadb554909f07a"
 dependencies = [
  "unicode-xid",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 8a09dcf..cc3d215 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,7 +18,7 @@ serde = { version = "1.0.123", features = ["derive"] }
 [build-dependencies]
 bindgen = "0.57.0"
 num_cpus = "1.13.0"
-proc-macro2 = "1.0.24"
+proc-macro2 = "1.0.33"
 quote = "1.0.9"
 syn = { version = "1.0.60", features = [ "extra-traits", "full", "fold", "parsing" ] }