diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 2819edc..d0ecf72 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -40,16 +40,16 @@ jobs:
         password: ${{ secrets.QUAY_PASSWORD }}
     - name: Build and push
       id: build-push
-      uses: docker/build-push-action@v3
+      uses: docker/build-push-action@v4
       with:
         context: .
         push: ${{ github.event_name != 'pull_request' }}
         tags: ${{ steps.meta.outputs.tags }}
         labels: ${{ steps.meta.outputs.labels }}
-    - uses: sigstore/cosign-installer@v2.4.1
+    - uses: sigstore/cosign-installer@v3.5.0
     - name: cosign
       if: ${{ github.event_name != 'pull_request' }}
       env:
         COSIGN_EXPERIMENTAL: 1
       #run: cosign sign --oidc-issuer ${env.ACTIONS_ID_TOKEN_REQUEST_URL} ${{ env.IMAGE }}
-      run: cosign sign --oidc-issuer https://token.actions.githubusercontent.com ${{ env.IMAGE }}@${{ steps.build-push.outputs.digest }}
+      run: cosign sign -y --oidc-issuer https://token.actions.githubusercontent.com ${{ env.IMAGE }}@${{ steps.build-push.outputs.digest }}
diff --git a/Dockerfile b/Dockerfile
index c5c418f..ebcec9c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,10 +1,10 @@
-FROM quay.io/evryfs/base-ubuntu:jammy-20220531
+FROM quay.io/evryfs/base-ubuntu:jammy-20231128
 LABEL maintainer "David J. M. Karlsen <david@davidkarlsen.com>"
-ARG JDK_VERSION=18.0.2+9
-ARG DOWNLOAD_URL=https://github.com/adoptium/temurin18-binaries/releases/download/jdk-18.0.2%2B9/OpenJDK18U-jdk_x64_linux_hotspot_18.0.2_9.tar.gz
+ARG JDK_VERSION=8u352-b08
+ARG DOWNLOAD_URL=https://github.com/adoptium/temurin8-binaries/releases/download/jdk8u352-b08/OpenJDK8U-jdk_x64_linux_hotspot_8u352b08.tar.gz
 SHELL ["/bin/bash", "-o", "pipefail", "-c"]
 RUN	mkdir -p /usr/lib/jvm && \
 	curl -Ls ${DOWNLOAD_URL} | tar xzv -C /usr/lib/jvm && \
-	sh -c 'for bin in /usr/lib/jvm/jdk-${JDK_VERSION}/bin/*; do update-alternatives --install /usr/bin/$(basename $bin) $(basename $bin) $bin 100 ;done' && \
-	sh -c 'for bin in /usr/lib/jvm/jdk-${JDK_VERSION}/bin/*; do update-alternatives --set $(basename $bin) $bin; done' && \
+	sh -c 'for bin in /usr/lib/jvm/jdk${JDK_VERSION}/bin/*; do update-alternatives --install /usr/bin/$(basename $bin) $(basename $bin) $bin 100 ;done' && \
+	sh -c 'for bin in /usr/lib/jvm/jdk${JDK_VERSION}/bin/*; do update-alternatives --set $(basename $bin) $bin; done' && \
 	java -Xshare:dump