diff --git a/Package.resolved b/Package.resolved
index 81eb237..221473b 100644
--- a/Package.resolved
+++ b/Package.resolved
@@ -1,13 +1,13 @@
 {
-  "originHash" : "415e86469ea1d6251bc53e08101947c7ba5d854f1c7d01bce01766df2fdd6ee3",
+  "originHash" : "5be1d7e05e15c089d9c098a75fde18f6f310ed40bf781f0e6310e57c67f57ee4",
   "pins" : [
     {
       "identity" : "swift-syntax",
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/swiftlang/swift-syntax.git",
       "state" : {
-        "revision" : "f99ae8aa18f0cf0d53481901f88a0991dc3bd4a2",
-        "version" : "601.0.1"
+        "revision" : "2b59c0c741e9184ab057fd22950b491076d42e91",
+        "version" : "603.0.0"
       }
     }
   ],
diff --git a/Package.swift b/Package.swift
index d0ea533..5cda25f 100644
--- a/Package.swift
+++ b/Package.swift
@@ -19,7 +19,7 @@ let package = Package(
         ),
     ],
     dependencies: [
-        .package(url: "https://github.com/swiftlang/swift-syntax.git", from: "601.0.1"),
+        .package(url: "https://github.com/swiftlang/swift-syntax.git", from: "603.0.0"),
     ],
     targets: [
         // Targets are the basic building blocks of a package, defining a module or a test suite.