diff --git a/.github/workflows/L10n-update.yml b/.github/workflows/L10n-update.yml
index f523ba5..db8b4d2 100644
--- a/.github/workflows/L10n-update.yml
+++ b/.github/workflows/L10n-update.yml
@@ -9,7 +9,7 @@ jobs:
 
     steps:
       - name: Repository dispatch
-        uses: peter-evans/repository-dispatch@v3
+        uses: peter-evans/repository-dispatch@28959ce8df70de7be546dd1250a005dd32156697 # v4.0.1
         with:
           token: ${{ secrets.ICINGABOT_TOKEN }}
           repository: Icinga/L10n