Update HelmSetup.md

versioned_docs/version-v0.15/GettingStarted/HelmSetup.md

diff --git a/versioned_docs/version-v0.15/GettingStarted/HelmSetup.md b/versioned_docs/version-v0.15/GettingStarted/HelmSetup.md
index f34a8ce..15d1852 100644
--- a/versioned_docs/version-v0.15/GettingStarted/HelmSetup.md
+++ b/versioned_docs/version-v0.15/GettingStarted/HelmSetup.md
@@ -22,7 +22,7 @@
 ```shell
 helm repo add devlake https://apache.github.io/incubator-devlake-helm-chart
 helm repo update
-helm install devlake devlake/devlake --version=v0.15.0-rc4
+helm install devlake devlake/devlake --version=0.15.0-rc5
 ```
 
 And visit your devlake from the node port (32001 by default).
@@ -47,7 +47,7 @@
 
 ```shell
 helm repo update
-helm upgrade --install devlake devlake/devlake --version=v0.15.0-rc4
+helm upgrade --install devlake devlake/devlake --version=0.15.0-rc5
 ```
 
 ### Uninstall