diff --git a/content/en/common/kubernetes-versions.md b/content/en/common/kubernetes-versions.md
index 9d61eca69..c90ade7bc 100644
--- a/content/en/common/kubernetes-versions.md
+++ b/content/en/common/kubernetes-versions.md
@@ -5,6 +5,6 @@ _build:
 
 | Installation Tool | KubeSphere version | Supported Kubernetes versions                                |
 | ----------------- | ------------------ | ------------------------------------------------------------ |
-| KubeKey           | v3.1.0             | v1.17.0, v1.17.4, v1.17.5, v1.17.6, v1.17.7, v1.17.8, v1.17.9, v1.18.3, v1.18.5, v1.18.6, v1.18.8, v1.19.0, v1.19.8, v1.19.9, v1.20.4 |
-| ks-installer      | v3.1.0             | v1.17.x, v1.18.x, v1.19.x, v1.20.x                           |
+| KubeKey           | v3.1.1             | v1.17.0, v1.17.4, v1.17.5, v1.17.6, v1.17.7, v1.17.8, v1.17.9, v1.18.3, v1.18.5, v1.18.6, v1.18.8, v1.19.0, v1.19.8, v1.19.9, v1.20.4 |
+| ks-installer      | v3.1.1             | v1.17.x, v1.18.x, v1.19.x, v1.20.x                           |
 
diff --git a/content/en/common/system-requirements.md b/content/en/common/system-requirements.md
index cf9af96aa..75dab3b74 100644
--- a/content/en/common/system-requirements.md
+++ b/content/en/common/system-requirements.md
@@ -3,11 +3,11 @@ _build:
     render: false
 ---
 
-| System                                                       | Minimum Requirements (Each node)            |
-| ------------------------------------------------------------ | ------------------------------------------- |
-| **Ubuntu** *16.04, 18.04*                                    | CPU: 2 Cores, Memory: 4 G, Disk Space: 40 G |
-| **Debian** *Buster, Stretch*                                 | CPU: 2 Cores, Memory: 4 G, Disk Space: 40 G |
-| **CentOS** *7*.x                                             | CPU: 2 Cores, Memory: 4 G, Disk Space: 40 G |
-| **Red Hat Enterprise Linux** *7*                             | CPU: 2 Cores, Memory: 4 G, Disk Space: 40 G |
-| **SUSE Linux Enterprise Server** *15* **/openSUSE Leap** *15.2* | CPU: 2 Cores, Memory: 4 G, Disk Space: 40 G |
+| System                                                       | Minimum Requirements (Each node)              |
+| ------------------------------------------------------------ | --------------------------------------------- |
+| **Ubuntu** *16.04, 18.04*                                    | CPU: 2 Cores, Memory: 4 GB, Disk Space: 40 GB |
+| **Debian** *Buster, Stretch*                                 | CPU: 2 Cores, Memory: 4 GB, Disk Space: 40 GB |
+| **CentOS** *7*.x                                             | CPU: 2 Cores, Memory: 4 GB, Disk Space: 40 GB |
+| **Red Hat Enterprise Linux** *7*                             | CPU: 2 Cores, Memory: 4 GB, Disk Space: 40 GB |
+| **SUSE Linux Enterprise Server** *15* **/openSUSE Leap** *15.2* | CPU: 2 Cores, Memory: 4 GB, Disk Space: 40 GB |