diff --git a/types/express-serve-static-core/index.d.ts b/types/express-serve-static-core/index.d.ts
index 83e26a23e4..10b379b565 100644
--- a/types/express-serve-static-core/index.d.ts
+++ b/types/express-serve-static-core/index.d.ts
@@ -5,7 +5,7 @@
 //                 Kacper Polak <https://github.com/kacepe>
 //                 Satana Charuwichitratana <https://github.com/micksatana>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.4
+// TypeScript Version: 2.2
 
 // This extracts the core definitions from express to prevent a circular dependency between express and serve-static
 /// <reference types="node" />
diff --git a/types/express/index.d.ts b/types/express/index.d.ts
index 2ac9fb4bd3..18231dcfbc 100644
--- a/types/express/index.d.ts
+++ b/types/express/index.d.ts
@@ -2,7 +2,7 @@
 // Project: http://expressjs.com
 // Definitions by: Boris Yankov <https://github.com/borisyankov>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.4
+// TypeScript Version: 2.2
 
 /* =================== USAGE ===================