diff --git a/.github/workflows/pull_request.yaml b/.github/workflows/pull_request.yaml
index 11a43c3..828879a 100644
--- a/.github/workflows/pull_request.yaml
+++ b/.github/workflows/pull_request.yaml
@@ -181,7 +181,7 @@ jobs:
         push: true
         build-args: |
           BUILD_PARAMETERS=${{ env.BUILD_PARAMETERS }}
-          BUILDER_IMAGE=gcr.io/${{ env.GHCR_IMAGE_REPOSITORY }}:${{ steps.generate_tag.outputs.GIT_TAG }}
+          BUILDER_IMAGE=ghcr.io/${{ env.GHCR_IMAGE_REPOSITORY }}:${{ steps.generate_tag.outputs.GIT_TAG }}
         cache-to: type=inline
         platforms: linux/amd64,linux/arm64
         tags: |
diff --git a/.github/workflows/push.yaml b/.github/workflows/push.yaml
index ff04818..4c7a02b 100644
--- a/.github/workflows/push.yaml
+++ b/.github/workflows/push.yaml
@@ -168,7 +168,7 @@ jobs:
           push: true
           build-args: |
             BUILD_PARAMETERS=${{ env.BUILD_PARAMETERS }}
-            BUILDER_IMAGE=gcr.io/${{ env.GHCR_IMAGE_REPOSITORY }}:${{ steps.generate_tag.outputs.new_tag }}
+            BUILDER_IMAGE=ghcr.io/${{ env.GHCR_IMAGE_REPOSITORY }}:${{ steps.generate_tag.outputs.new_tag }}
           cache-to: type=inline
           platforms: linux/amd64,linux/arm64
           tags: |