diff --git a/Cargo.lock b/Cargo.lock
index 22ccb4d..4230a98 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1775,9 +1775,9 @@ checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
 
 [[package]]
 name = "syn"
-version = "1.0.107"
+version = "1.0.109"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1f4064b5b16e03ae50984a5a8ed5d4f8803e6bc1fd170a3cda91a1be4b18e3f5"
+checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/crates/marine-test-macro-impl/Cargo.toml b/crates/marine-test-macro-impl/Cargo.toml
index 92314d9..8a4c965 100644
--- a/crates/marine-test-macro-impl/Cargo.toml
+++ b/crates/marine-test-macro-impl/Cargo.toml
@@ -21,7 +21,7 @@ darling = "0.14.3"
 quote = "1.0.21"
 proc-macro2 = "1.0.51"
 proc-macro-error = { version = "1.0.4", default-features = false }
-syn = { version = '1.0.107', features = ['full'] }
+syn = { version = '1.0.109', features = ['full'] }
 thiserror = "1.0.38"
 static_assertions = "1.1.0"
 
diff --git a/crates/marine-test-macro/Cargo.toml b/crates/marine-test-macro/Cargo.toml
index 2af780a..e4d6e04 100644
--- a/crates/marine-test-macro/Cargo.toml
+++ b/crates/marine-test-macro/Cargo.toml
@@ -23,4 +23,4 @@ marine-test-macro-impl = { path = "../marine-test-macro-impl", version = "=0.8.2
 quote = "1.0.21"
 proc-macro2 = "1.0.51"
 proc-macro-error = { version = "1.0.4", default-features = false }
-syn = { version = '1.0.107', features = ['full'] }
+syn = { version = '1.0.109', features = ['full'] }