diff --git a/.gitea/workflows/build.yaml b/.gitea/workflows/build.yaml
index ca283af..7fd0e7c 100644
--- a/.gitea/workflows/build.yaml
+++ b/.gitea/workflows/build.yaml
@@ -21,7 +21,7 @@ jobs:
             zip                    
 
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: https://git.kjan.de/actions/checkout@v4
 
       - name: Hash west modules
         id: hash-west
@@ -33,7 +33,7 @@ jobs:
           echo "computed hash: $HASH"                    
 
       - name: Cache west modules
-        uses: actions/cache@v4
+        uses: https://git.kjan.de/actions/cache@v4
         env:
           cache-name: cache-zephyr-modules
         with:
@@ -93,7 +93,7 @@ jobs:
           echo "computed hash: $HASH"                    
 
       - name: Upload Artifact
-        uses: actions/upload-artifact@v3
+        uses: https://git.kjan.de/actions/upload-artifact@v3
         with:
           path: firmware/
           name: firmware