diff --git a/FirebaseFunctions.podspec b/FirebaseFunctions.podspec
index e5d93cb78c4..4d1552cc4fe 100644
--- a/FirebaseFunctions.podspec
+++ b/FirebaseFunctions.podspec
@@ -16,7 +16,7 @@ Cloud Functions for Firebase.
     :tag => 'CocoaPods-' + s.version.to_s
   }
 
-  s.swift_version    = '5.9'
+  s.swift_version    = '6.0'
 
   ios_deployment_target = '15.0'
   osx_deployment_target = '10.15'