diff --git a/TOC.md b/TOC.md
index 9498a94de02ab..ab60d0cd6de13 100644
--- a/TOC.md
+++ b/TOC.md
@@ -331,7 +331,6 @@
     - [Maintain a TiFlash Cluster](/tiflash/maintain-tiflash.md)
     - [Monitor TiFlash](/tiflash/monitor-tiflash.md)
     - [Scale TiFlash](/scale-tidb-using-tiup.md#scale-out-a-tiflash-node)
-    - [Upgrade TiFlash Nodes](/tiflash/upgrade-tiflash.md)
     - [Configure TiFlash](/tiflash/tiflash-configuration.md)
     - [TiFlash Alert Rules](/tiflash/tiflash-alert-rules.md)
     - [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md)
diff --git a/tiflash/upgrade-tiflash.md b/tiflash/upgrade-tiflash.md
deleted file mode 100644
index f1afa313fd6d5..0000000000000
--- a/tiflash/upgrade-tiflash.md
+++ /dev/null
@@ -1,44 +0,0 @@
----
-title: Upgrade TiFlash Nodes
-summary: Learn how to upgrade TiFlash nodes.
-category: reference
-aliases: ['/docs/dev/reference/tiflash/upgrade/']
----
-
-# Upgrade TiFlash Nodes
-
-> **Note:**
->
-> To upgrade TiFlash from the Pre-RC version to a later version, contact [PingCAP](mailto:info@pingcap.com) for more information and help.
-
-Currently, you cannot upgrade TiFlash by running the `tiup cluster upgrade` command. Instead, take the following steps to upgrade TiFlash:
-
-Before the upgrade, make sure that the cluster is started. To upgrade TiFlash nodes, take the following steps:
-
-1. Refer to [Scale in a TiFlash node](/scale-tidb-using-tiup.md#sclale-in-a-tiflash-node), and scale in all the TiFlash nodes.
-
-2. Run the upgrade command:
-
-    {{< copyable "shell-regular" >}}
-
-    ```shell
-    tiup cluster upgrade test v4.0.0-rc
-    ```
-
-3. Run the scale-out command:
-
-    {{< copyable "shell-regular" >}}
-
-    ```shell
-    tiup cluster scale-out test scale-out.yaml
-    ```
-
-4. View the cluster status:
-
-    {{< copyable "shell-regular" >}}
-
-    ```shell
-    tiup cluster display test
-    ```
-
-5. Access the monitoring platform using your browser, and view the status of the cluster.