diff --git a/Cargo.lock b/Cargo.lock
index 07871b5..03a79ea 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1850,7 +1850,7 @@ dependencies = [
  "hyperdb-compile-check",
  "proc-macro2",
  "quote",
- "syn 2.0.119",
+ "syn 3.0.5",
  "trybuild",
 ]
 
diff --git a/hyperdb-api-derive/Cargo.toml b/hyperdb-api-derive/Cargo.toml
index a01c6f4..626e2f3 100644
--- a/hyperdb-api-derive/Cargo.toml
+++ b/hyperdb-api-derive/Cargo.toml
@@ -23,7 +23,7 @@ proc-macro = true
 compile-time = ["dep:hyperdb-compile-check"]
 
 [dependencies]
-syn = { version = "2", features = ["full"] }
+syn = { version = "3", features = ["full"] }
 quote = "1"
 proc-macro2 = "1"
 # x-release-please-start-version