diff --git a/.gitea/workflows/release-image.yml b/.gitea/workflows/release-image.yml
index cb4b215..0631c66 100644
--- a/.gitea/workflows/release-image.yml
+++ b/.gitea/workflows/release-image.yml
@@ -41,6 +41,9 @@ jobs:
           driver-opts: |
             namespace=gitea
             qemu.install=true
+          buildkitd-config-inline: |
+            [registry."registry-1.docker.io"]
+              mirrors = ["oci://harbor.alexlebens.net/proxy-registry-1.docker.io/"]
 
       - name: Available Platforms
         run: echo ${{ steps.buildx.outputs.platforms }}
@@ -70,7 +73,7 @@ jobs:
           tags: ${{ env.TEST_TAG }}
           file: ./Dockerfile
           build-args: |
-            REGISTRY=oci://harbor.alexlebens.net/proxy-registry-1.docker.io
+            REGISTRY=oci://harbor.alexlebens.net/proxy-registry-1.docker.io/
 
       - name: Test
         run: |
@@ -86,7 +89,7 @@ jobs:
           labels: ${{ steps.meta.outputs.labels }}
           file: ./Dockerfile
           build-args: |
-            REGISTRY=oci://harbor.alexlebens.net/proxy-registry-1.docker.io
+            REGISTRY=oci://harbor.alexlebens.net/proxy-registry-1.docker.io/
 
       - name: Actions Ntfy
         run: |