diff --git a/README.md b/README.md
index f165eb2..cbaf821 100644
--- a/README.md
+++ b/README.md
@@ -13,19 +13,19 @@ Using [gitea](https://git.limbosolutions.com/kb/gitea) as git server.
 
 ### add chart
 
-``` yaml
+``` bash
 helm repo add gitea-charts https://dl.gitea.com/charts/
 ```
 
 ### update chart
 
-``` yaml
+``` bash
 helm repo update
 ```
 
 ### Upgrade / Install
 
-``` yaml
+``` bash
 helm upgrade --install gitea gitea-charts/gitea \
 --values ./gitea/values.yaml \
 --values ./gitea/values.private.yaml \