diff --git a/.github/workflows/docker-images.yml b/.github/workflows/docker-images.yml
index f99a4a9f08..3aa34c6620 100644
--- a/.github/workflows/docker-images.yml
+++ b/.github/workflows/docker-images.yml
@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node: ['10', '12', '14', '16']
+        node: ['10', '14']
     env:
       # Node version whose images will be aliased without the -nodeXX segment
       DEFAULT_NODE_MAJOR_VERSION: 12
@@ -70,6 +70,8 @@ jobs:
         id: buildx
         if: steps.should-run.outputs.result == 'true'
         uses: docker/setup-buildx-action@v1
+        with:
+          buildkitd-flags: --oci-worker-max-parallelism=1
 
       - name: Determine build time
         id: build-time