diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 2e32f56..ea8d68b 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -23,4 +23,18 @@ jobs:
         uses: actions/upload-artifact@v2
         with:
           name: site
-          path: pack.zip
\ No newline at end of file
+          path: pack.zip
+
+  test-bleeding-edge-java-and-npm:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: build image
+        run: docker build . --target bleeding-edge
+      - name: build website
+        run: env DOCKER_TAG=bleeding-edge ./dockerenv-github.sh ./pack.sh
+      - name: Upload artifact
+        uses: actions/upload-artifact@v2
+        with:
+          name: site
+          path: pack-for-verification.zip
diff --git a/Dockerfile b/Dockerfile
index fb58410..575e069 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,8 +1,5 @@
 # Adopted from mozilla/sbt
 
-# This Dockerfile has one required ARG to determine which base image
-# to use for the JDK to install.
-
 # JDK 8 is the LTS with the longest support at the time of writing.
 ARG OPENJDK_TAG=8
 
@@ -12,7 +9,7 @@ COPY project/build.properties /
 RUN sed -n -e 's/^sbt\.version=//p' /build.properties > /version
 
 # Second stage creates final image with the right SBT version
-FROM amazoncorretto:${OPENJDK_TAG}
+FROM amazoncorretto:${OPENJDK_TAG} AS conservative
 RUN yum install -y rsync lftp zip unzip which
 ARG NODE_VERSION=16
 RUN yum install https://rpm.nodesource.com/pub_${NODE_VERSION}.x/nodistro/repo/nodesource-release-nodistro-1.noarch.rpm -y
@@ -25,3 +22,18 @@ RUN \
   rm sbt-$(cat /sbt-version).rpm && \
   mkdir /project
 WORKDIR /project
+
+# This stage can be used for testing whether the build is compatible with fresh versions of JDK and NodeJS/NPM
+FROM fedora:latest AS bleeding-edge
+RUN dnf install -y rsync lftp zip unzip which nodejs npm java-latest-openjdk-devel
+COPY --from=sbt-version /version /sbt-version
+RUN \
+  curl -L -o sbt-$(cat /sbt-version).rpm https://scala.jfrog.io/ui/api/v1/download\?repoKey=rpm\&path=%252Fsbt-$(cat /sbt-version).rpm && \
+  echo SBT launcher downloaded && \
+  rpm -i sbt-$(cat /sbt-version).rpm && \
+  rm sbt-$(cat /sbt-version).rpm && \
+  mkdir /project
+WORKDIR /project
+
+
+FROM conservative AS default
diff --git a/dockerenv-github.sh b/dockerenv-github.sh
index 2a3a66f..b5be403 100755
--- a/dockerenv-github.sh
+++ b/dockerenv-github.sh
@@ -4,6 +4,8 @@ set -u
 set -e
 set -o pipefail
 
+TAG=${DOCKER_TAG:-conservative}
+
 exec docker run \
   -v "$HOME"/.ivycache:/root/.ivy2 \
   -v "$HOME"/.sbtcache:/root/.sbt \
@@ -12,5 +14,5 @@ exec docker run \
   -v "$HOME"/.ssh/zbdb-id_rsa.pub:/root/.ssh/id_rsa.pub:ro \
   -v "$(pwd)":/project \
   -p 9000:9000 \
-  "$(docker build -q .)" \
+  "$(docker build -q . --target $TAG)" \
   "$@"