diff --git a/.github/workflows/update.yml b/.github/workflows/update.yml
index 96b0d46..d38cedd 100644
--- a/.github/workflows/update.yml
+++ b/.github/workflows/update.yml
@@ -37,7 +37,7 @@ jobs:
       -
         name: Get latest Debian base image
         run: |
-          DEBIAN_VERSION=$(curl -SsL "https://registry.hub.docker.com/v2/repositories/library/debian/tags/?name=buster-20&ordering=last_updated&" | jq -r ".results[].name | match(\"buster.*-slim\") | .string" | head -n1)
+          DEBIAN_VERSION=$(curl -SsL "https://registry.hub.docker.com/v2/repositories/library/debian/tags/?name=bookworm-20&ordering=last_updated" | jq -r ".results[].name | match(\"bookworm.*-slim\") | .string" | head -n1)
           if [ -z "$DEBIAN_VERSION" ]
           then
             echo "Debian slim latest tag could not be retrieved"
diff --git a/Dockerfile.template b/Dockerfile.template
index 868ecd7..88817a3 100644
--- a/Dockerfile.template
+++ b/Dockerfile.template
@@ -37,6 +37,7 @@ RUN  curl -sL http://www.pgbouncer.org/downloads/files/${PGBOUNCER_VERSION}/pgbo
 
 
 FROM debian:${DEBIAN_VERSION}
+ARG DEBIAN_VERSION
 ARG PGBOUNCER_VERSION
 ARG TARGETARCH