diff --git a/docs-2.0/nebula-operator/1.introduction-to-nebula-operator.md b/docs-2.0/nebula-operator/1.introduction-to-nebula-operator.md
index 81c875d1ecc..cff3229003d 100644
--- a/docs-2.0/nebula-operator/1.introduction-to-nebula-operator.md
+++ b/docs-2.0/nebula-operator/1.introduction-to-nebula-operator.md
@@ -36,7 +36,7 @@ NebulaGraph Operator does not support the v1.x version of NebulaGraph. NebulaGra
 
 | NebulaGraph |NebulaGraph Operator | 
 | ------------------- | ----------- |
-| 3.0.0 ~ 3.4.1 |1.3.0, 1.4.0|
+| 3.0.0 ~ 3.4.1 |1.3.0, 1.4.0 ~ 1.4.2|
 | 3.0.0 ~ 3.3.x |1.0.0, 1.1.0, 1.2.0|
 | 2.5.x ~ 2.6.x |0.9.0| 
 | 2.5.x         |0.8.0| 
diff --git a/docs-2.0/nebula-operator/2.deploy-nebula-operator.md b/docs-2.0/nebula-operator/2.deploy-nebula-operator.md
index 795a9ff172c..4c972ec93f7 100644
--- a/docs-2.0/nebula-operator/2.deploy-nebula-operator.md
+++ b/docs-2.0/nebula-operator/2.deploy-nebula-operator.md
@@ -26,13 +26,13 @@ Before installing NebulaGraph Operator, you need to install the following softwa
 
 ### Install NebulaGraph Operator
 
-1. Add the NebulaGraph Operator chart repository to Helm.
+1. Add the NebulaGraph Operator Helm repository.
    
   ```bash
   helm repo add nebula-operator https://vesoft-inc.github.io/nebula-operator/charts
   ```
 
-2. Update information of available charts locally from chart repositories.
+1. Update information of available charts locally from repositories.
 
   ```bash
   helm repo update
@@ -54,7 +54,7 @@ Before installing NebulaGraph Operator, you need to install the following softwa
 
   - `nebula-operator-system` is a user-created namespace name. If you have not created this namespace, run `kubectl create namespace nebula-operator-system` to create one. You can also use a different name.
     
-  - `{{operator.release}}` is the version of the NebulaGraph Operator chart. It can be unspecified when there is only one chart version in the NebulaGraph Operator chart repository. Run `helm search repo -l nebula-operator` to see chart versions.
+  - `{{operator.release}}` is the version of the NebulaGraph Operator chart. When not specifying `--version`, the latest version of the nebula-operator chart is used by default. Run `helm search repo -l nebula-operator` to see chart versions.
   
   You can customize the configuration items of the NebulaGraph Operator chart before running the installation command. For more information, see **Customize Helm charts** below.
 
diff --git a/docs-2.0/nebula-operator/3.deploy-nebula-graph-cluster/3.2create-cluster-with-helm.md b/docs-2.0/nebula-operator/3.deploy-nebula-graph-cluster/3.2create-cluster-with-helm.md
index 0beeb1786d5..aaf8b948a1b 100644
--- a/docs-2.0/nebula-operator/3.deploy-nebula-graph-cluster/3.2create-cluster-with-helm.md
+++ b/docs-2.0/nebula-operator/3.deploy-nebula-graph-cluster/3.2create-cluster-with-helm.md
@@ -18,7 +18,7 @@
 
 ## Create clusters
 
-1. Add the NebulaGraph Operator chart repository to Helm (If you have already added the chart, skip the 1-2 steps and start from step 3).
+1. Add the NebulaGraph Operator Helm repository.
    
   ```bash
   helm repo add nebula-operator https://vesoft-inc.github.io/nebula-operator/charts
@@ -72,7 +72,11 @@
   helm install "${NEBULA_CLUSTER_NAME}" nebula-operator/nebula-cluster \
       --namespace="${NEBULA_CLUSTER_NAMESPACE}" \
       --set nameOverride=${NEBULA_CLUSTER_NAME} \
-      --set nebula.storageClassName="${STORAGE_CLASS_NAME}"
+      --set nebula.storageClassName="${STORAGE_CLASS_NAME}" \
+      # Specify the version of the NebulaGraph cluster. 
+      --set nebula.version={{nebula.release}} \  
+      # Specify the version of the nebula-cluster chart. If not specified, the latest version of the chart is installed by default.     
+      --version={{operator.release}} 
   ```
 
   {{ ent.ent_begin }}
@@ -204,4 +208,4 @@ helm uninstall nebula --namespace=nebula
 | `nebula.storaged.readinessProbe` |  `{}` | ReadinessProbe for the Metad pod. |
 | `nebula.storaged.sidecarContainers` |  `{}` | Sidecar containers for the Metad pod. |
 | `nebula.storaged.sidecarVolumes` | `{}` | Sidecar volumes for the Metad pod. |
-| `imagePullSecrets`          | `[]`                                                         | The Secret to pull the NebulaGraph cluster image.                                           |
\ No newline at end of file
+| `imagePullSecrets`          | `[]`                                                         | The Secret to pull the NebulaGraph cluster image.                                           |
diff --git a/mkdocs.yml b/mkdocs.yml
index 18e6a13c08c..d5515bf9904 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -243,8 +243,8 @@ extra:
     branch: release-1.2
     tag: v1.2.0
   operator:
-    release: 1.4.0
-    tag: v1.4.0
+    release: 1.4.2
+    tag: v1.4.2
     branch: release-1.4
     upgrade_from: 3.0.0
     upgrade_to: 3.4.0