diff --git a/README.md b/README.md
index 7b1a6440..03db4a61 100644
--- a/README.md
+++ b/README.md
@@ -16,8 +16,8 @@ KubeZero is a Kubernetes distribution providing an integrated container platform
 | KubeZero \ Kubernetes Version          | v1.19 | v1.20 | v1.21 | EOL         |
 |----------------------------------------|-------|-------|-------|-------------|
 | master branch                          | no    | yes   | alpha |             |
-| stable branch                          | yes   | no    | no    |             |
-| v2.20.0                                | no    | yes   | no    | 30 Aug 2021 |
+| stable branch                          | no    | yes   | no    |             |
+| v2.20.0                                | no    | yes   | no    | 30 Oct 2021 |
 | v2.19.0                                | yes   | no    | no    | 30 Aug 2021 |
 
 [Upstream release policy](https://kubernetes.io/releases/)