diff --git a/.github/workflows/build-docker-images.yml b/.github/workflows/build-docker-images.yml
index 4c1c09f..2953f22 100644
--- a/.github/workflows/build-docker-images.yml
+++ b/.github/workflows/build-docker-images.yml
@@ -46,8 +46,11 @@ jobs:
           tags: |
             ${{ env.REGISTRY }}/${{ gitea.repository_owner }}/blog-ahmza-com:latest
             ${{ env.REGISTRY }}/${{ gitea.repository_owner }}/blog-ahmza-com:${{ gitea.event.head_commit.id }}
-          cache-from: type=gha
-          cache-to: type=gha,mode=max
+          # Registry-backed build cache. The GitHub-hosted 'gha' cache is not
+          # reachable from self-hosted Gitea runners, so store the cache as a
+          # dedicated tag in the same registry instead.
+          cache-from: type=registry,ref=${{ env.REGISTRY }}/${{ gitea.repository_owner }}/blog-ahmza-com:buildcache
+          cache-to: type=registry,ref=${{ env.REGISTRY }}/${{ gitea.repository_owner }}/blog-ahmza-com:buildcache,mode=max
   deploy:
     runs-on: ubuntu-latest
     needs: build