diff --git a/README.md b/README.md
index 4eed16b..28c73c0 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ See also:
 | -------------- | ---------------- |
 | 0.9.x  | 1.x |
 | 1.x    | 2.x |
-| 2.x    | 3.x |
+| 2.x    | 3.x / 4.x |
 
 ## Documentation