diff --git a/Cargo.lock b/Cargo.lock
index e74d9be2..cb1a4a98 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -800,9 +800,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.76"
+version = "1.0.78"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "95fc56cda0b5c3325f5fbbd7ff9fda9e02bb00bb3dac51252d2f1bfa1cb8cc8c"
+checksum = "e2422ad645d89c99f8f3e6b88a9fdeca7fabeac836b1002371c4367c8f984aae"
 dependencies = [
  "unicode-ident",
 ]
diff --git a/narrow-derive/Cargo.toml b/narrow-derive/Cargo.toml
index 5f29c35f..43c2b4e2 100644
--- a/narrow-derive/Cargo.toml
+++ b/narrow-derive/Cargo.toml
@@ -22,7 +22,7 @@ proc-macro = true
 [dependencies]
 once_cell = "1.18.0"
 proc-macro-crate = "3.1.0"
-proc-macro2 = "1.0.66"
+proc-macro2 = "1.0.78"
 quote = "1.0.35"
 syn = { version = "2.0.48", features = ["visit-mut", "full"] }