diff --git a/development/docker/CentOS7Slim.Dockerfile b/development/docker/CentOS7Slim.Dockerfile
index a70a413..30e1a41 100644
--- a/development/docker/CentOS7Slim.Dockerfile
+++ b/development/docker/CentOS7Slim.Dockerfile
@@ -6,35 +6,32 @@ ARG CPPCHECK_VERSION=2.5
 # Define a local name
 FROM neszt/cppcheck-docker:${CPPCHECK_VERSION} AS upstream_cppcheck
 
+#Add label for transparency
+LABEL org.opencontainers.image.source https://github.com/mantidproject/dockerfiles
+
 # Base
 # CentOS 7 matches platform used by conda-forge
 FROM centos:7
 
-# Install minimal developer tools
+# Install IUS repo for additional yum installs (e.g. git v2 onwards)
+# Install EPEL repo as IUS repo has some dependencies on it
 RUN yum install -y \
   https://repo.ius.io/ius-release-el7.rpm && \
-  yum -y remove git && \
   yum install -y https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
   
-RUN yum install -y \
-    git236
-
 # Add target user
 RUN useradd --uid 911 --user-group --shell /bin/bash --create-home abc
 
-#Add label for transparency
-LABEL org.opencontainers.image.source https://github.com/mantidproject/dockerfiles
-
 # Install minimal developer tools
 RUN yum install -y \
   ccache \
   curl \
+  git236 \
   graphviz \
   libXScrnSaver \
   openssl \
   pciutils-libs \
   perl-Digest-MD5 \
-  python36-pip \
   sudo \
   which \
   xorg-x11-server-Xvfb && \
diff --git a/development/docker/build_common_slim.sh b/development/docker/build_common_slim.sh
index 2288e92..4db53d0 100644
--- a/development/docker/build_common_slim.sh
+++ b/development/docker/build_common_slim.sh
@@ -3,6 +3,6 @@
 # Use GitHub packages container registry
 REGISTRY="ghcr.io"
 ORG="mantidproject"
-VERSION="0.12"
+VERSION="0.13"
 
 BUILD_LOG_DIR="build_logs"
diff --git a/jenkins-node/mantid-builder/docker-images/CentOS7Slim.Dockerfile b/jenkins-node/mantid-builder/docker-images/CentOS7Slim.Dockerfile
index ccbed61..593e77f 100644
--- a/jenkins-node/mantid-builder/docker-images/CentOS7Slim.Dockerfile
+++ b/jenkins-node/mantid-builder/docker-images/CentOS7Slim.Dockerfile
@@ -1,6 +1,6 @@
 # Arguments allowed to be used in FROM have to come
 # before the first stage
-ARG DEVELOPMENT_IMAGE_VERSION=0.12
+ARG DEVELOPMENT_IMAGE_VERSION=0.13
 FROM ghcr.io/mantidproject/mantid-development-centos7-slim:${DEVELOPMENT_IMAGE_VERSION}
 
 #Add label for transparency
diff --git a/jenkins-node/mantid-builder/docker-images/build_common_slim.sh b/jenkins-node/mantid-builder/docker-images/build_common_slim.sh
index 51b0028..cc7956f 100644
--- a/jenkins-node/mantid-builder/docker-images/build_common_slim.sh
+++ b/jenkins-node/mantid-builder/docker-images/build_common_slim.sh
@@ -3,4 +3,4 @@
 # Use GitHub packages container registry
 REGISTRY="ghcr.io"
 ORG="mantidproject"
-VERSION="0.12"
+VERSION="0.13"