diff --git a/.github/workflows/docker-publish.yml b/.github/workflows/docker-publish.yml
index 5540bfc..ad04f10 100644
--- a/.github/workflows/docker-publish.yml
+++ b/.github/workflows/docker-publish.yml
@@ -34,11 +34,9 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        context: ['docker-c7', 'docker-c8', 'docker-c9']
+        context: ['docker-c8', 'docker-c9']
         # Define platform for images
         include:
-          - context: docker-c7
-            platform: linux/amd64
           - context: docker-c8
             platform: linux/amd64,linux/arm64
           - context: docker-c9
diff --git a/docker-c7/Dockerfile b/docker-c7/Dockerfile
deleted file mode 100644
index f03caac..0000000
--- a/docker-c7/Dockerfile
+++ /dev/null
@@ -1,71 +0,0 @@
-FROM centos:7
-
-# If installing multiple packages yum will return success if at least one package installs.
-# We don't want this, so we provide a wrapper to fail if *any* of the packages fail to install.
-RUN echo -e '#!/bin/bash\nfor p in "$@"; do\nyum -y install "$p" || exit 1; done' > /usr/local/sbin/yummy && \
-    chmod u+x /usr/local/sbin/yummy && \
-    cat /usr/local/sbin/yummy
-
-RUN yummy yum-priorities yum-utils
-
-RUN yummy zip curl
-
-# Create all possible pool accounts
-RUN curl -s https://raw.githubusercontent.com/stfc/grid-workernode/master/resources/pool_accounts/create.sh | bash -
-
-# CVMFS (for SAM tests only - SAM tests will fail without client; install before adding other repos to ensure we have the latest version)
-RUN yummy https://ecsft.cern.ch/dist/cvmfs/cvmfs-release/cvmfs-release-latest.noarch.rpm \
-                   https://ecsft.cern.ch/dist/cvmfs/cvmfs-config-egi/cvmfs-config-egi-2.0-1.el7.centos.noarch.rpm && \
-    yummy cvmfs
-
-# EPEL
-RUN yummy https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
-
-# Basic dependencies
-RUN yummy \
-  freetype \
-  expat \
-  gcc \
-  glibc-headers \
-  compat-openldap \
-  time \
-  man \
-  unzip \
-  quota \
-  attr \
-  tcsh \
-  numactl
-
-# Install Python3
-RUN yummy python3
-
-# Install HEP_OSlibs
-RUN yummy http://linuxsoft.cern.ch/wlcg/centos7/x86_64/HEP_OSlibs-7.3.1-2.el7.cern.x86_64.rpm
-
-# Machine job features
-RUN yummy http://quattor.web.lal.in2p3.fr/packages/machine-job-features/sl6/noarch/mjf-htcondor-00.19-1.noarch.rpm
-
-# Boost (need to ensure gfal CLI from CVMFS will work for some VOs)
-RUN yummy boost-date-time boost-filesystem boost-graph boost-iostreams boost-program-options \
-                   boost-python boost-regex boost-serialization boost-signals boost-system boost-test \
-                   boost-thread boost-wave
-
-# Apptainer
-RUN yummy apptainer
-
-# Disable overlay and loop device management in apptainer
-RUN sed -i '/enable overlay/c\enable overlay = no' /etc/apptainer/apptainer.conf && \
-    sed -i '/enable underlay/c\enable underlay = yes' /etc/apptainer/apptainer.conf && \
-    sed -i '/max loop devices/c\max loop devices = 0' /etc/apptainer/apptainer.conf
-
-# Deny setuid in Apptainer
-RUN sed -i '/allow setuid/c\allow setuid = no' /etc/apptainer/apptainer.conf
-
-# Update & cleanup
-RUN yum -y update && \
-    yum clean all && \
-    rm -rf /var/cache/yum
-
-LABEL source=https://github.com/stfc/grid-workernode
-LABEL description="A specialised container image optimized for high-performance batch job execution in RAL's computing environment. \
-It includes essential software, libraries, and dependencies, ensuring efficient, and scalable job processing, benefiting researchers and organisations."