diff --git a/Cargo.lock b/Cargo.lock
index 538b41a..71f9cb9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -146,9 +146,9 @@ checksum = "439ee305def115ba05938db6eb1644ff94165c5ab5e9420d1c1bcedbba909391"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.80"
+version = "1.0.81"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a56dea16b0a29e94408b9aa5e2940a4eedbd128a1ba20e8f7ae60fd3d465af0e"
+checksum = "3d1597b0c024618f09a9c3b8655b7e430397a36d23fdafec26d6965e9eec3eba"
 dependencies = [
  "unicode-ident",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 9662cb5..ae1adf1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -24,7 +24,7 @@ version = "1.0.36"
 features = ["proc-macro"]
 
 [dependencies.proc-macro2]
-version = "1.0.80"
+version = "1.0.81"
 
 [features]
 default = ["original-compatibility", "strict-syntax", "and-time", "time-backend"]