diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index d29dfa6..4cfdcc2 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -60,9 +60,9 @@ jobs:
       run: |
         /usr/bin/docker create --name test_ckan --network ${{ job.container.network }} --network-alias ckan \
           -e "HOME=/github/home" -e GITHUB_ACTIONS=true -e CI=true -v "/var/run/docker.sock":"/var/run/docker.sock" \
-          -v "/home/runner/work":"/__w" -v "/home/runner/runners/2.299.1/externals":"/__e":ro \
-          -v "/home/runner/work/_temp":"/__w/_temp" -v "/home/runner/work/_actions":"/__w/_actions" \
-          -v "/opt/hostedtoolcache":"/__t" -v "/home/runner/work/_temp/_github_home":"/github/home" \
+          -v "/home/runner/work":"/__w" -v "/home/runner/work/_temp":"/__w/_temp" \
+          -v "/home/runner/work/_actions":"/__w/_actions" -v "/opt/hostedtoolcache":"/__t" \
+          -v "/home/runner/work/_temp/_github_home":"/github/home" \
           -v "/home/runner/work/_temp/_github_workflow":"/github/workflow" \
           --entrypoint "tail" openknowledge/ckan-dev:${{ matrix.ckan-version }} "-f" "/dev/null"
         docker start test_ckan
diff --git a/bin/install_test_requirements.sh b/bin/install_test_requirements.sh
index 1703bf0..601f3b9 100755
--- a/bin/install_test_requirements.sh
+++ b/bin/install_test_requirements.sh
@@ -7,18 +7,22 @@ pip install -e /__w/ckanext-stadtzh-harvest/ckanext-stadtzh-harvest/
 pip install -U requests[security]
 
 # Install ckanext dependencies
-pip install -e git+https://github.com/ckan/ckanext-dcat.git#egg=ckanext-dcat
-pip install -e git+https://github.com/ckan/ckanext-harvest.git#egg=ckanext-harvest
-pip install -r https://raw.githubusercontent.com/ckan/ckanext-harvest/master/requirements.txt
 pip install -e git+https://github.com/ckan/ckanext-xloader.git#egg=ckanext-xloader
 pip install -r https://raw.githubusercontent.com/ckan/ckanext-xloader/master/requirements.txt
 pip install -e git+https://github.com/opendatazurich/ckanext-stadtzh-theme.git@dockerizing#egg=ckanext-stadtzh-theme
 pip install -r https://raw.githubusercontent.com/opendatazurich/ckanext-stadtzh-theme/dockerizing/pip-requirements.txt
 
 if [ "$1" = "2.9-py2" ]; then
-  pip install -r https://raw.githubusercontent.com/ckan/ckanext-dcat/master/requirements-py2.txt
+  # Install most recent versions that still support Py2
+  pip install -e git+https://github.com/ckan/ckanext-dcat.git@0c26bed5b7a3a7fca8e7b78e338aace096e0ebf6#egg=ckanext-dcat
+  pip install -r https://raw.githubusercontent.com/ckan/ckanext-dcat/0c26bed5b7a3a7fca8e7b78e338aace096e0ebf6/requirements-py2.txt
+  pip install -e git+https://github.com/ckan/ckanext-harvest.git@a628782a984a7ee9ac2c51236d3fad4b4e9c7fbb#egg=ckanext-harvest
+  pip install -r https://raw.githubusercontent.com/ckan/ckanext-harvest/a628782a984a7ee9ac2c51236d3fad4b4e9c7fbb/requirements.txt
 else
+  pip install -e git+https://github.com/ckan/ckanext-dcat.git#egg=ckanext-dcat
   pip install -r https://raw.githubusercontent.com/ckan/ckanext-dcat/master/requirements.txt
+  pip install -e git+https://github.com/ckan/ckanext-harvest.git#egg=ckanext-harvest
+  pip install -r https://raw.githubusercontent.com/ckan/ckanext-harvest/master/requirements.txt
 fi
 
 # Replace default path to CKAN core config file with the one on the container