diff --git a/Package.resolved b/Package.resolved
index 9f50166..cd10261 100644
--- a/Package.resolved
+++ b/Package.resolved
@@ -5,8 +5,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/swiftlang/swift-syntax.git",
       "state" : {
-        "revision" : "64889f0c732f210a935a0ad7cda38f77f876262d",
-        "version" : "509.1.1"
+        "revision" : "9de99a78f099e59caf2b2beec65a4c45d54b2081",
+        "version" : "603.0.1"
       }
     }
   ],
diff --git a/Package.swift b/Package.swift
index 0289e94..cf8cad7 100644
--- a/Package.swift
+++ b/Package.swift
@@ -16,7 +16,7 @@ let package = Package(
         .plugin(name: "ResolveKitPlugin", targets: ["ResolveKitPlugin"])
     ],
     dependencies: [
-        .package(url: "https://github.com/swiftlang/swift-syntax.git", from: "509.0.0")
+        .package(url: "https://github.com/swiftlang/swift-syntax.git", from: "603.0.1")
     ],
     targets: [
         .target(