diff --git a/Cargo.lock b/Cargo.lock
index 9973cb062..c32cd12fa 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -253,7 +253,7 @@ checksum = "b9ccdd8f2a161be9bd5c023df56f1b2a0bd1d83872ae53b71a84a12c9bf6e842"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.10",
+ "syn 2.0.12",
 ]
 
 [[package]]
@@ -400,7 +400,7 @@ checksum = "fdde5c9cd29ebd706ce1b35600920a33550e402fc998a2e53ad3b42c3c47a192"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.10",
+ "syn 2.0.12",
 ]
 
 [[package]]
@@ -527,7 +527,7 @@ dependencies = [
  "heck",
  "proc-macro2",
  "quote",
- "syn 2.0.10",
+ "syn 2.0.12",
 ]
 
 [[package]]
@@ -712,7 +712,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "scratch",
- "syn 2.0.10",
+ "syn 2.0.12",
 ]
 
 [[package]]
@@ -729,7 +729,7 @@ checksum = "2345488264226bf682893e25de0769f3360aac9957980ec49361b083ddaa5bc5"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.10",
+ "syn 2.0.12",
 ]
 
 [[package]]
@@ -1146,7 +1146,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "serde",
- "syn 2.0.10",
+ "syn 2.0.12",
 ]
 
 [[package]]
@@ -2562,7 +2562,7 @@ dependencies = [
  "proc-macro2",
  "proc-macro2-diagnostics",
  "quote",
- "syn 2.0.10",
+ "syn 2.0.12",
 ]
 
 [[package]]
@@ -2701,7 +2701,7 @@ checksum = "606c4ba35817e2922a308af55ad51bab3645b59eae5c570d4a6cf07e36bd493b"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.10",
+ "syn 2.0.12",
  "version_check",
  "yansi",
 ]
@@ -3113,7 +3113,7 @@ checksum = "e801c1712f48475582b7696ac71e0ca34ebb30e09338425384269d9717c62cad"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.10",
+ "syn 2.0.12",
 ]
 
 [[package]]
@@ -3144,7 +3144,7 @@ checksum = "bcec881020c684085e55a25f7fd888954d56609ef363479dc5a1305eb0d40cab"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.10",
+ "syn 2.0.12",
 ]
 
 [[package]]
@@ -3375,9 +3375,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.10"
+version = "2.0.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5aad1363ed6d37b84299588d62d3a7d95b5a5c2d9aad5c85609fda12afaa1f40"
+checksum = "79d9531f94112cfc3e4c8f5f02cb2b58f72c97b7efd85f70203cc6d8efda5927"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -3430,7 +3430,7 @@ checksum = "f9456a42c5b0d803c8cd86e73dd7cc9edd429499f37a3550d286d5e86720569f"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.10",
+ "syn 2.0.12",
 ]
 
 [[package]]
diff --git a/crates/fj-proc/Cargo.toml b/crates/fj-proc/Cargo.toml
index 4d97e5908..24a771373 100644
--- a/crates/fj-proc/Cargo.toml
+++ b/crates/fj-proc/Cargo.toml
@@ -22,5 +22,5 @@ version = "1.0.158"
 optional = true
 
 [dependencies.syn]
-version = "2.0.10"
+version = "2.0.12"
 features = ["full", "extra-traits"]