diff --git a/Cargo.lock b/Cargo.lock
index eed8501e..b8147a88 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1139,9 +1139,9 @@ checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
 
 [[package]]
 name = "syn"
-version = "2.0.103"
+version = "2.0.104"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e4307e30089d6fd6aff212f2da3a1f9e32f3223b1f010fb09b7c95f90f3ca1e8"
+checksum = "17b6f705963418cdb9927482fa304bc562ece2fdd4f616084c50b7023b435a40"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/parameterized-test/Cargo.toml b/parameterized-test/Cargo.toml
index 7f379260..60c4c884 100644
--- a/parameterized-test/Cargo.toml
+++ b/parameterized-test/Cargo.toml
@@ -7,7 +7,7 @@ license = "MIT"
 [dependencies]
 proc-macro2 = "1.0.95"
 quote = "1.0.40"
-syn = { version = "2.0.100", features = ["full"] }
+syn = { version = "2.0.104", features = ["full"] }
 
 [lib]
 proc-macro = true