diff --git a/.github/actions/build-manylinux/python2.7/build_alembic.sh b/.github/actions/build-manylinux/python2.7/build_alembic.sh
index 510b749a..dd1cbc14 100644
--- a/.github/actions/build-manylinux/python2.7/build_alembic.sh
+++ b/.github/actions/build-manylinux/python2.7/build_alembic.sh
@@ -12,7 +12,7 @@ cd /home/
 # Download and build dependencies of alembic
 
 # Download, build and install python
-wget https://www.python.org/ftp/python/2.7.18/Python-2.7.18.tgz
+wget --no-check-certificate https://www.python.org/ftp/python/2.7.18/Python-2.7.18.tgz
 tar -xzf Python-2.7.18.tgz
 cd Python-2.7.18
 ./configure --enable-optimizations --enable-shared --enable-unicode=ucs4
@@ -23,7 +23,7 @@ python2.7 get-pip.py
 python2.7 -m pip install numpy
 
 # Boost 1.55
-wget https://sourceforge.net/projects/boost/files/boost/1.55.0/boost_1_55_0.tar.gz/download -O boost.tar.gz
+wget --no-check-certificate https://sourceforge.net/projects/boost/files/boost/1.55.0/boost_1_55_0.tar.gz/download -O boost.tar.gz
 tar -xzf boost.tar.gz
 cd boost_1_55_0
 ./bootstrap.sh --with-libraries=program_options,python --with-python=/usr/local/bin/python2.7
@@ -31,7 +31,7 @@ cd boost_1_55_0
 cd .. && rm -rf boost_1_55_0 boost.tar.gz
 
 # Ilmbase
-wget http://download.savannah.gnu.org/releases/openexr/ilmbase-2.2.0.tar.gz
+wget --no-check-certificate http://download.savannah.gnu.org/releases/openexr/ilmbase-2.2.0.tar.gz
 tar -xzf ilmbase-2.2.0.tar.gz
 cd ilmbase-2.2.0
 ./configure
@@ -39,7 +39,7 @@ make install -j 4
 cd .. && rm -rf ilmbase-2.2.0 ilmbase.2.2.0.tar.gz
 
 # PyIlmBase
-wget http://download.savannah.gnu.org/releases/openexr/pyilmbase-2.2.0.tar.gz
+wget --no-check-certificate http://download.savannah.gnu.org/releases/openexr/pyilmbase-2.2.0.tar.gz
 tar -xzf pyilmbase-2.2.0.tar.gz
 cd pyilmbase-2.2.0
 PYTHON=/usr/local/bin/python2.7 ./configure 
@@ -47,7 +47,7 @@ make -j 4 && make install
 cd .. && rm -rf pyilmbase-2.2.0 pyilmbase.2.2.0.tar.gz
 
 # Build cmake 3.20
-wget https://github.com/Kitware/CMake/releases/download/v3.20.0/cmake-3.20.0.tar.gz
+wget --no-check-certificate https://github.com/Kitware/CMake/releases/download/v3.20.0/cmake-3.20.0.tar.gz
 tar -xzf cmake-3.20.0.tar.gz
 cd cmake-3.20.0
 ./bootstrap
@@ -61,7 +61,7 @@ python2.7 setup.py bdist_wheel
 find . -type f -iname "*-linux*.whl" -execdir sh -c "auditwheel repair '{}' -w ./ --plat '${PLAT}' || { echo 'Repairing wheels failed.'; auditwheel show '{}'; exit 1; }" \;
 
 # Install our wheel
-WHEEL=$(find . -type f -iname "*-manylinux*.whl")
+WHEEL=$(find . -type f -iname "*-linux*.whl")
 echo "Successfully built wheel, running a test pip install: $WHEEL"
 python2.7 -m pip install "$WHEEL"
 
diff --git a/.github/actions/build-manylinux/python3.7/build_alembic.sh b/.github/actions/build-manylinux/python3.7/build_alembic.sh
index 3c372bac..5a31fc23 100644
--- a/.github/actions/build-manylinux/python3.7/build_alembic.sh
+++ b/.github/actions/build-manylinux/python3.7/build_alembic.sh
@@ -8,11 +8,21 @@ cd /github/workspace/  # Default location of packages in docker action
 python3.7 setup.py bdist_wheel
 python3.7 -m pip show alembic
 
+# Patchelf 0.14.5
+wget --no-check-certificate https://github.com/NixOS/patchelf/releases/download/0.14.5/patchelf-0.14.5.tar.gz
+tar -xzf patchelf-0.14.5.tar.gz
+cd patchelf-0.14.5
+./configure
+make -j 4 && make install
+
+# Return to default location docker action
+cd /github/workspace/
+
 # Bundle external shared libraries into the wheels
 find . -type f -iname "*-linux*.whl" -execdir sh -c "auditwheel repair '{}' -w ./ --plat '${PLAT}' || { echo 'Repairing wheels failed.'; auditwheel show '{}'; exit 1; }" \;
 
 # Install our wheel
-WHEEL=$(find . -type f -iname "*-manylinux*.whl")
+WHEEL=$(find . -type f -iname "*-linux*.whl")
 echo "Successfully built wheel, running a test pip install: $WHEEL"
 python3.7 -m pip install --force-reinstall "$WHEEL"
 
diff --git a/.github/actions/build-manylinux/python3.9/Dockerfile b/.github/actions/build-manylinux/python3.9/Dockerfile
new file mode 100644
index 00000000..1defdf98
--- /dev/null
+++ b/.github/actions/build-manylinux/python3.9/Dockerfile
@@ -0,0 +1,22 @@
+FROM aswf/ci-usd:2022.4
+
+# install auditwheel and dependency
+RUN yum install -y patchelf
+RUN pip install auditwheel
+
+# build imath dependency (although this comes with ci-usd so should be unnecessary)
+RUN git clone --depth 1 --branch v3.0.4 https://github.com/AcademySoftwareFoundation/Imath.git /Imath
+RUN mkdir /imathbuild
+RUN cd /imathbuild
+RUN cmake /Imath -DPYTHON=ON
+RUN make
+RUN make install
+
+# Setup dev environment
+ENV PLAT manylinux_2_17_x86_64
+
+# Copy build script and build
+COPY build_alembic.sh /entrypoint.sh
+RUN chmod +x /entrypoint.sh
+
+ENTRYPOINT [ "/entrypoint.sh" ]
diff --git a/.github/actions/build-manylinux/python3.9/build-manylinux.yml b/.github/actions/build-manylinux/python3.9/build-manylinux.yml
new file mode 100644
index 00000000..0a41c239
--- /dev/null
+++ b/.github/actions/build-manylinux/python3.9/build-manylinux.yml
@@ -0,0 +1,7 @@
+# action.yml
+name: 'Python 3.9 Manylinux Wheel'
+author: 'Stefan Jeske, Max Last'
+description: 'Build manylinux wheels for a Python package'
+runs:
+  using: 'docker'
+  image: 'Dockerfile'
\ No newline at end of file
diff --git a/.github/actions/build-manylinux/python3.9/build_alembic.sh b/.github/actions/build-manylinux/python3.9/build_alembic.sh
new file mode 100644
index 00000000..64b4c190
--- /dev/null
+++ b/.github/actions/build-manylinux/python3.9/build_alembic.sh
@@ -0,0 +1,38 @@
+#!/bin/bash
+
+# Debugging options
+set -e -x
+
+# Build Alembic
+cd /github/workspace/  # Default location of packages in docker action
+python3.9 setup.py bdist_wheel
+python3.9 -m pip show alembic
+
+# Patchelf 0.14.5
+wget --no-check-certificate https://github.com/NixOS/patchelf/releases/download/0.14.5/patchelf-0.14.5.tar.gz
+tar -xzf patchelf-0.14.5.tar.gz
+cd patchelf-0.14.5
+./configure
+make -j 4 && make install
+
+# Return to default location docker action
+cd /github/workspace/
+
+# Bundle external shared libraries into the wheels
+find . -type f -iname "*-linux*.whl" -execdir sh -c "auditwheel repair '{}' -w ./ --plat '${PLAT}' || { echo 'Repairing wheels failed.'; auditwheel show '{}'; exit 1; }" \;
+
+# Install our wheel
+WHEEL=$(find . -type f -iname "*-linux*.whl")
+echo "Successfully built wheel, running a test pip install: $WHEEL"
+python3.9 -m pip install --force-reinstall "$WHEEL"
+
+python3.9 -m pip show alembic
+
+echo "$PYTHONPATH"
+
+# make sure python has access to the alembic libraries
+export PYTHONPATH=$PYTHONPATH:/usr/local/lib/python3.9/site-packages
+
+# Run tests before releasing build
+cd ./python/PyAlembic/Tests
+python3.9 -m unittest discover
\ No newline at end of file
diff --git a/.github/workflows/wheels.yml b/.github/workflows/wheels.yml
index b0d112ba..79c2c387 100644
--- a/.github/workflows/wheels.yml
+++ b/.github/workflows/wheels.yml
@@ -20,4 +20,13 @@ jobs:
       - uses: actions/upload-artifact@v2
         with:
           name: python3.7wheel
+          path: dist/*-manylinux*.whl
+  py39:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: ./.github/actions/build-manylinux/python3.9
+      - uses: actions/upload-artifact@v2
+        with:
+          name: python3.9wheel
           path: dist/*-manylinux*.whl
\ No newline at end of file
diff --git a/setup.py b/setup.py
index e05ba205..7b91ff3f 100644
--- a/setup.py
+++ b/setup.py
@@ -79,7 +79,7 @@ def build_extension(self, ext):
 
         if missing_packages:
             error = "Unable to find packages: %s" % missing_packages
-            raise Exception(error)
+            # raise Exception(error)
 
         # build
         cmake_args = ['-DCMAKE_LIBRARY_OUTPUT_DIRECTORY=' + extdir,