diff --git a/Cargo.lock b/Cargo.lock
index 6d02771c3..6802775ee 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2286,9 +2286,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.41"
+version = "1.0.42"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cdcc2916cde080c1876ff40292a396541241fe0072ef928cd76582e9ea5d60d2"
+checksum = "c278e965f1d8cf32d6e0e96de3d3e79712178ae67986d9cf9151f51e95aac89b"
 dependencies = [
  "unicode-ident",
 ]
diff --git a/crates/fj-proc/Cargo.toml b/crates/fj-proc/Cargo.toml
index 43e4ea3cd..bbf009039 100644
--- a/crates/fj-proc/Cargo.toml
+++ b/crates/fj-proc/Cargo.toml
@@ -16,7 +16,7 @@ proc-macro = true
 
 
 [dependencies]
-proc-macro2 = "1.0.41"
+proc-macro2 = "1.0.42"
 quote = "1.0.20"
 
 [dependencies.serde]