diff --git a/test/_ubuntu_23.Dockerfile b/test/_ubuntu_23.Dockerfile
deleted file mode 100644
index 4f88be7d..00000000
--- a/test/_ubuntu_23.Dockerfile
+++ /dev/null
@@ -1,18 +0,0 @@
-FROM buildpack-deps:lunar-scm
-
-ENV GITDIR=/etc/.pihole
-ENV SCRIPTDIR=/opt/pihole
-
-RUN mkdir -p $GITDIR $SCRIPTDIR /etc/pihole
-ADD . $GITDIR
-RUN cp $GITDIR/advanced/Scripts/*.sh $GITDIR/gravity.sh $GITDIR/pihole $GITDIR/automated\ install/*.sh $GITDIR/advanced/Scripts/COL_TABLE $SCRIPTDIR/
-ENV PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:$SCRIPTDIR
-ENV DEBIAN_FRONTEND=noninteractive
-
-RUN true && \
-    chmod +x $SCRIPTDIR/*
-
-ENV SKIP_INSTALL=true
-ENV OS_CHECK_DOMAIN_NAME=dev-supportedos.pi-hole.net
-
-#sed '/# Start the installer/Q' /opt/pihole/basic-install.sh > /opt/pihole/stub_basic-install.sh && \