diff --git a/Package.resolved b/Package.resolved
index 5286f48..e9b8f10 100644
--- a/Package.resolved
+++ b/Package.resolved
@@ -32,8 +32,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/apple/swift-syntax.git",
       "state" : {
-        "revision" : "2e3c42cf38defd998c87ecfe8df138f925d22736",
-        "version" : "509.0.0-swift-DEVELOPMENT-SNAPSHOT-2023-08-15-a"
+        "revision" : "74203046135342e4a4a627476dd6caf8b28fe11b",
+        "version" : "509.0.0"
       }
     },
     {
diff --git a/Package.swift b/Package.swift
index 5362cb2..c9d90cc 100644
--- a/Package.swift
+++ b/Package.swift
@@ -15,7 +15,7 @@ let package = Package(
     dependencies: [
         .package(
             url: "https://github.com/apple/swift-syntax.git",
-            exact: "509.0.0-swift-DEVELOPMENT-SNAPSHOT-2023-08-15-a"
+            exact: "509.0.0"
         ),
         .package(url: "https://github.com/apple/swift-docc-plugin", from: "1.3.0"),
         .package(url: "https://github.com/SwiftPackageIndex/SPIManifest.git", from: "0.12.0"),