diff --git a/.github/actions/upstream-test/action.yml b/.github/actions/upstream-test/action.yml
index 76e251b43..d0c36fbd9 100644
--- a/.github/actions/upstream-test/action.yml
+++ b/.github/actions/upstream-test/action.yml
@@ -59,7 +59,7 @@ runs:
             }}-double_down_${{
               inputs.double_down_version
             }}
-          stages: base, external_deps, hdf5, moab, dagmc
+          stages: base, external_deps, dagmc
           server-stage: dagmc_test
           quiet: false
           parallel: true
diff --git a/.github/workflows/docker_publish.yml b/.github/workflows/docker_publish.yml
index 39baed063..42edbd1cd 100644
--- a/.github/workflows/docker_publish.yml
+++ b/.github/workflows/docker_publish.yml
@@ -15,7 +15,6 @@ jobs:
     strategy:
       matrix:
         ubuntu_version : [
-          20.04,
           22.04,
         ]
         compiler : [
@@ -75,7 +74,7 @@ jobs:
         uses: firehed/multistage-docker-build-action@v1
         with:
           repository: ${{ env.image_base_tag }}
-          stages: base, external_deps, hdf5, moab, dagmc
+          stages: base, external_deps, dagmc, final
           server-stage: dagmc_test
           quiet: false
           parallel: true
@@ -97,7 +96,6 @@ jobs:
     strategy:
       matrix:
         ubuntu_version : [
-          20.04,
           22.04,
         ]
         compiler : [
diff --git a/.github/workflows/linux_build_test.yml b/.github/workflows/linux_build_test.yml
index 383a2fd19..2aaf9ec29 100644
--- a/.github/workflows/linux_build_test.yml
+++ b/.github/workflows/linux_build_test.yml
@@ -37,7 +37,6 @@ jobs:
     strategy:
       matrix:
         ubuntu_version : [
-          20.04,
           22.04,
         ]
         compiler : [
diff --git a/CI/Dockerfile b/CI/Dockerfile
index 38060c260..7cbfa6878 100644
--- a/CI/Dockerfile
+++ b/CI/Dockerfile
@@ -3,7 +3,7 @@
 # build from repository root directory with command
 # docker build -t dagmc -f CI/Dockerfile .
 
-# Global ARGS set before the first build stage are accessable by all build stages
+# Global arguments set before the first build stage are accessable by all build stages
 ARG UBUNTU_VERSION=22.04
 ARG HDF5_VERSION=hdf5_1_14_3
 ARG MOAB_VERSION=5.5.1
@@ -34,7 +34,6 @@ RUN apt-get update --yes && \
     apt-get install --yes --no-install-recommends \
         git \
         ca-certificates \
-        autoconf \
         make \
         cmake \
         g++ \
@@ -52,16 +51,22 @@ ARG INSTALL_DIR
 ENV BUILD_DIR=${BUILD_DIR}
 ENV INSTALL_DIR=${INSTALL_DIR}
 
+
+# set default compiler to gcc
 FROM base AS compiler-gcc
 
 ENV CC=gcc
 ENV CXX=g++
 
+
+# set default compiler to clang
 FROM base AS compiler-clang
 
 ENV CC=clang
 ENV CXX=clang++
 
+
+# Install External Dependencies
 FROM compiler-${COMPILER} AS external_deps
 
 # accessing gloabl ARGs in build stage
@@ -70,9 +75,10 @@ ARG BUILD_DIR
 ARG CI_JOBS
 ARG CXX
 ARG CC
+
+# Build Embree
 ARG DOUBLE_DOWN_VERSION
 ARG EMBREE_VERSION
-ARG GEANT4_VERSION
 
 ENV EMBREE_INSTALL_DIR=${INSTALL_DIR}/Embree
 ENV EMBREE_BUILD_DIR=${BUILD_DIR}/Embree
@@ -96,6 +102,9 @@ RUN if [ "${DOUBLE_DOWN_VERSION}" != "off" ]; then \
     fi
 
 
+# Build Geant4
+ARG GEANT4_VERSION
+
 ENV GEANT4_BUILD_DIR=${BUILD_DIR}/geant4
 ENV GEANT4_INSTALL_DIR=${INSTALL_DIR}/geant4
 
@@ -119,14 +128,7 @@ RUN if [ "${GEANT4_VERSION}" != "off" ]; then \
     fi
 
 
-FROM external_deps AS hdf5
-
-# accessing gloabl ARGs in build stage
-ARG INSTALL_DIR
-ARG BUILD_DIR
-ARG CI_JOBS
-ARG CXX
-ARG CC
+# Build HDF5
 ARG HDF5_VERSION
 
 ENV HDF5_BUILD_DIR=${BUILD_DIR}/hdf5
@@ -136,29 +138,18 @@ RUN mkdir -p ${HDF5_BUILD_DIR}/build && \
     cd ${HDF5_BUILD_DIR} && \
     git clone -b ${HDF5_VERSION} --depth 1 https://github.com/HDFGroup/hdf5.git && \
     cd build && \
-    ../hdf5/configure --enable-shared \
-        --prefix=${HDF5_INSTALL_DIR} \
-        CXX=${CXX} \
-        CC=${CC} && \
+    cmake ../hdf5 \
+        -DCMAKE_INSTALL_PREFIX=${HDF5_INSTALL_DIR} \
+        -DBUILD_SHARED_LIBS=ON && \
     make -j${CI_JOBS} && \
     make install && \
     cd && \
     rm -rf ${HDF5_BUILD_DIR}
 
 
-FROM hdf5 AS moab
-
-# accessing gloabl ARGs in build stage
-ARG INSTALL_DIR
-ARG BUILD_DIR
-ARG CI_JOBS
-ARG CXX
-ARG CC
+# Build MOAB
 ARG MOAB_VERSION
-ARG DOUBLE_DOWN_VERSION
-
 
-# Set MOAB env variable
 ENV MOAB_BUILD_DIR=${BUILD_DIR}/moab
 ENV MOAB_INSTALL_DIR=${INSTALL_DIR}/moab
 
@@ -184,6 +175,9 @@ RUN mkdir -p ${MOAB_BUILD_DIR}/build && \
     rm -rf ${MOAB_BUILD_DIR}
 
 
+# Build Double Down
+ARG DOUBLE_DOWN_VERSION
+
 ENV DOUBLE_DOWN_BUILD_DIR=${BUILD_DIR}/double-down
 ENV DOUBLE_DOWN_INSTALL_DIR=${INSTALL_DIR}/double-down
 
@@ -205,7 +199,8 @@ RUN if [ "${DOUBLE_DOWN_VERSION}" != "off" ]; then \
     fi
 
 
-FROM moab AS dagmc
+# Build DAGMC
+FROM external_deps AS dagmc
 
 # accessing gloabl ARGs in build stage
 ARG INSTALL_DIR
@@ -218,7 +213,7 @@ ARG DOUBLE_DOWN_VERSION
 ENV DAGMC_BUILD_DIR=${BUILD_DIR}/dagmc
 ENV DAGMC_INSTALL_DIR=${INSTALL_DIR}/dagmc
 
-# copies the enitre git repo into the dockerfile to ensure the submodules can also be found
+# Copy the enitre git repo into the dockerfile to ensure the submodules can also be found
 COPY . ${DAGMC_BUILD_DIR}
 
 RUN mkdir -p ${DAGMC_BUILD_DIR}/build && \
@@ -244,6 +239,7 @@ RUN mkdir -p ${DAGMC_BUILD_DIR}/build && \
     make install
 
 
+# Test DAGMC
 FROM dagmc AS dagmc_test
 
 ENV DAGMC_BUILD_DIR=${BUILD_DIR}/dagmc
@@ -262,7 +258,9 @@ RUN cd ${DAGMC_BUILD_DIR}/cmake/test_config && \
     cmake . -DDAGMC_ROOT=${DAGMC_INSTALL_DIR} && \
     CTEST_OUTPUT_ON_FAILURE=1 make all test
 
-FROM scratch AS binaries
+
+# Release image
+FROM ubuntu:${UBUNTU_VERSION} AS final
 
 ARG INSTALL_DIR
 
@@ -277,4 +275,4 @@ ENV PATH=${GEANT4_INSTALL_DIR}/bin:$PATH
 
 WORKDIR ${INSTALL_DIR}
 
-ENTRYPOINT ["/bin/bash"]
+ENTRYPOINT ["/bin/bash"]
\ No newline at end of file
diff --git a/doc/CHANGELOG.rst b/doc/CHANGELOG.rst
index d2689aaff..d9ecb88f3 100644
--- a/doc/CHANGELOG.rst
+++ b/doc/CHANGELOG.rst
@@ -16,7 +16,7 @@ Next version
   * Simplify Housekeeping Process for DAGMC (#943)
   * Allow Double Down v1.1.0 Installation in Dockerfile (#929 #944 #949)
   * Inline documentation improvements (#945)
-  * Streamline dependencies of docker CI images (#951)
+  * Streamline dependencies of docker CI images (#951 #952)
 
 v3.2.3
 ====================