diff --git a/4.x/typescript/README.md b/4.x/typescript/README.md
index 3d6158d94..de04d268b 100644
--- a/4.x/typescript/README.md
+++ b/4.x/typescript/README.md
@@ -9,7 +9,7 @@ Currently, due to limitations in TypeScript, the APIs [autocasting](https://deve
 
 ## Requirements
 
-* [TypeScript][2] 2.7+
+* [TypeScript][2] 3.7+
 
 ## Resources