diff --git a/Dockerfile.py b/Dockerfile.py
index 0aa1e1b..0db8d92 100755
--- a/Dockerfile.py
+++ b/Dockerfile.py
@@ -112,8 +112,9 @@ def run_and_stream_command_output(command, args):
                 print(line, end='')
     build_result.wait()
     if build_result.returncode != 0:
-        print("     ::: Error running".format(command))
+        print("     ::: Error running {}".format(command))
         print(build_result.stderr)
+        sys.exit(build_resuilt.returncode)
 
 
 def build(docker_repo, arch, args):
diff --git a/Dockerfile.sh b/Dockerfile.sh
index e48a64f..1446b0f 100755
--- a/Dockerfile.sh
+++ b/Dockerfile.sh
@@ -1,8 +1,9 @@
-#!/usr/bin/env sh
+#!/usr/bin/env bash
+
 # alpine sh only
 
 set -eux
-./Dockerfile.py -v --arch="${ARCH}" --hub_tag="${ARCH_IMAGE}"
+./Dockerfile.py -v --no-cache --arch="${ARCH}" --hub_tag="${ARCH_IMAGE}"
 # TODO: Add junitxml output and have circleci consume it
 # 2 parallel max b/c race condition with docker fixture (I think?)
 py.test -vv -n 2 -k "${ARCH}" ./test/
diff --git a/Dockerfile_amd64 b/Dockerfile_amd64
index 121adde..f2f1532 100644
--- a/Dockerfile_amd64
+++ b/Dockerfile_amd64
@@ -37,10 +37,10 @@ ENV ServerIP 0.0.0.0
 ENV FTL_CMD no-daemon
 ENV DNSMASQ_USER root
 
-ENV VERSION v5.0
+ENV VERSION v5.1.1
 ENV PATH /opt/pihole:${PATH}
 
-LABEL image="pihole/pihole:v5.0_amd64"
+LABEL image="pihole/pihole:v5.1.1_amd64"
 LABEL maintainer="adam@diginc.us"
 LABEL url="https://www.github.com/pi-hole/docker-pi-hole"
 
diff --git a/Dockerfile_arm64 b/Dockerfile_arm64
index c3f6ad4..dd7a66c 100644
--- a/Dockerfile_arm64
+++ b/Dockerfile_arm64
@@ -37,10 +37,10 @@ ENV ServerIP 0.0.0.0
 ENV FTL_CMD no-daemon
 ENV DNSMASQ_USER root
 
-ENV VERSION v5.0
+ENV VERSION v5.1.1
 ENV PATH /opt/pihole:${PATH}
 
-LABEL image="pihole/pihole:v5.0_arm64"
+LABEL image="pihole/pihole:v5.1.1_arm64"
 LABEL maintainer="adam@diginc.us"
 LABEL url="https://www.github.com/pi-hole/docker-pi-hole"
 
diff --git a/Dockerfile_armel b/Dockerfile_armel
index dc35b3a..687f964 100644
--- a/Dockerfile_armel
+++ b/Dockerfile_armel
@@ -37,10 +37,10 @@ ENV ServerIP 0.0.0.0
 ENV FTL_CMD no-daemon
 ENV DNSMASQ_USER root
 
-ENV VERSION v5.0
+ENV VERSION v5.1.1
 ENV PATH /opt/pihole:${PATH}
 
-LABEL image="pihole/pihole:v5.0_armel"
+LABEL image="pihole/pihole:v5.1.1_armel"
 LABEL maintainer="adam@diginc.us"
 LABEL url="https://www.github.com/pi-hole/docker-pi-hole"
 
diff --git a/Dockerfile_armhf b/Dockerfile_armhf
index 1862462..e626156 100644
--- a/Dockerfile_armhf
+++ b/Dockerfile_armhf
@@ -37,10 +37,10 @@ ENV ServerIP 0.0.0.0
 ENV FTL_CMD no-daemon
 ENV DNSMASQ_USER root
 
-ENV VERSION v5.0
+ENV VERSION v5.1.1
 ENV PATH /opt/pihole:${PATH}
 
-LABEL image="pihole/pihole:v5.0_armhf"
+LABEL image="pihole/pihole:v5.1.1_armhf"
 LABEL maintainer="adam@diginc.us"
 LABEL url="https://www.github.com/pi-hole/docker-pi-hole"
 
diff --git a/Dockerfile_build b/Dockerfile_build
index 550a050..fdf3c4c 100644
--- a/Dockerfile_build
+++ b/Dockerfile_build
@@ -1,10 +1,13 @@
-FROM docker:latest
+FROM python:buster
+
+# Only works for docker CLIENT (bind mounted socket)
+COPY --from=docker:18.09.3 /usr/local/bin/docker /usr/local/bin/
 
 # Based on https://github.com/Ilhicas/alpine-pipenv
 ARG packages
-RUN apk --update add python3 python3-dev curl gcc make \
-        musl-dev libffi-dev openssl-dev ${packages} \
-    && rm -rf /var/cache/apk/* \
+RUN apt-get update && \
+    apt-get install -y python3-dev curl gcc make \
+        libffi-dev libssl-dev ${packages} \
     && pip3 install -U pip pipenv
 
 
@@ -14,7 +17,7 @@ COPY Pipfile* /root/
 WORKDIR /root
 
 RUN pipenv install --system \
-    && sed -i 's|/bin/sh|/bin/bash|g' /usr/lib/python3.8/site-packages/testinfra/backend/docker.py
+    && sed -i 's|/bin/sh|/bin/bash|g' /usr/local/lib/python3.8/site-packages/testinfra/backend/docker.py
 
 
 RUN echo "set -ex && Dockerfile.sh && \$@" > /usr/local/bin/entrypoint.sh
diff --git a/VERSION b/VERSION
index 5e0a0f1..346d9ca 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-v5.0
+v5.1.1
diff --git a/circle-test.sh b/circle-test.sh
index e0a8b93..f3ce7fe 100755
--- a/circle-test.sh
+++ b/circle-test.sh
@@ -12,6 +12,7 @@ if [[ "$1" == "enter" ]]; then
 fi
 
 # generate and build dockerfile
+docker pull python:buster
 docker build -t image_pipenv -f Dockerfile_build .
 env > /tmp/env
 docker run --rm \
diff --git a/install.sh b/install.sh
index 2df2275..3de2723 100644
--- a/install.sh
+++ b/install.sh
@@ -4,7 +4,7 @@ mkdir -p /etc/pihole/
 mkdir -p /var/run/pihole
 # Production tags with valid web footers
 export CORE_VERSION="$(cat /etc/docker-pi-hole-version)"
-export WEB_VERSION="${CORE_VERSION}"
+export WEB_VERSION="v5.1"
 
 # Only use for pre-production / testing
 export CHECKOUT_BRANCHES=false
@@ -15,6 +15,7 @@ fi
 
 apt-get update
 apt-get install --no-install-recommends -y curl procps ca-certificates
+ln -s `which echo` /usr/local/bin/whiptail
 curl -L -s $S6OVERLAY_RELEASE | tar xvzf - -C /
 mv /init /s6-init