diff --git a/.github/workflows/build-conquest-python.yml b/.github/workflows/build-conquest-python.yml
index 6d2cc42..7e58ec9 100644
--- a/.github/workflows/build-conquest-python.yml
+++ b/.github/workflows/build-conquest-python.yml
@@ -36,11 +36,7 @@ jobs:
       - name: Set output
         id: set_output
         run: |
-          if [[ "${{ inputs.platforms }}" == "rocky8" ]]; then
-            echo runson=ubuntu-latest >> $GITHUB_OUTPUT
-            echo container=ccdcrepository.azurecr.io/conan/rocky8-gcc10:latest >> $GITHUB_OUTPUT
-            echo python=python3 >> $GITHUB_OUTPUT
-          elif [[ "${{ inputs.platforms }}" == "ubuntu" ]]; then
+          if [[ "${{ inputs.platforms }}" == "ubuntu" ]]; then
             echo runson=ubuntu-latest >> $GITHUB_OUTPUT
             echo python=python3 >> $GITHUB_OUTPUT
           elif [[ "${{ inputs.platforms }}" == "macos" ]]; then
@@ -49,13 +45,13 @@ jobs:
           elif [[ "${{ inputs.platforms }}" == "windows" ]]; then
             echo runson=windows-2019 >> $GITHUB_OUTPUT
             echo python=python >> $GITHUB_OUTPUT
+          else
+            # default to Rocky
+            echo runson=ubuntu-latest >> $GITHUB_OUTPUT
+            echo container=ccdcrepository.azurecr.io/conan/rocky8-gcc10:latest >> $GITHUB_OUTPUT
+            echo python=python3 >> $GITHUB_OUTPUT
           fi
 
-          # Build the conquest python for rocky8
-          echo runson=ubuntu-latest >> $GITHUB_OUTPUT
-          echo container=ccdcrepository.azurecr.io/conan/rocky8-gcc10:latest >> $GITHUB_OUTPUT
-          echo python=python3 >> $GITHUB_OUTPUT
-
   build-upload:
     needs:
       - setup
@@ -81,6 +77,16 @@ jobs:
           ${{ needs.setup.outputs.python }} --version
           ${{ needs.setup.outputs.python }} -m pip install --upgrade pip wheel setuptools
 
+      - name: Install patch
+        run: |
+          if [[ "${{ needs.setup.outputs.runson }}" == "ubuntu-latest" ]]; then
+            if [[ -f /etc/rocky-release ]]; then
+              sudo dnf install -y patch
+            else
+              sudo apt update && sudo apt install -y patch
+            fi
+          fi
+
       - name: Build conquest python
         run: |
           output=$(${{ needs.setup.outputs.python }} build_conquest_python.py | grep Creating | tail -n 1)
@@ -89,6 +95,14 @@ jobs:
           echo "archive_filename=$archive_filename" >> $GITHUB_ENV
           echo "archive_path=$archive_path" >> $GITHUB_ENV
 
+      - name: Store conquest python as build artifact
+        if: ${{ !inputs.artifactory-push }}
+        uses: actions/upload-artifact@v4
+        with:
+          retention-days: 1
+          path: "${{ env.archive_path }}/${{ env.archive_filename }}"
+          name: ${{ env.archive_filename }}
+
       - name: Set up JFrog CLI
         if: ${{ inputs.artifactory-push }}
         uses: jfrog/setup-jfrog-cli@v4
diff --git a/build_conquest_python.py b/build_conquest_python.py
index a58fd3a..8b8ec27 100755
--- a/build_conquest_python.py
+++ b/build_conquest_python.py
@@ -758,6 +758,14 @@ def main():
                 "fullName = '/System/Library/Frameworks/OpenGL.framework/OpenGL'"),
         )
 
+    # Patch Pyinstaller to fix https://github.com/pyinstaller/pyinstaller/issues/5540
+    # The actual fix for this isn't in any of the 3.x versions, and 4.x onwards require Python 3 :(
+    if Package().linux:
+        command = ["patch", "-p1", "-i", os.path.join(os.path.dirname(os.path.abspath(__file__)), "pyinstaller.patch")]
+        print(f"Applying patch with {' '.join(command)}")
+        package_path = ConquestPythonPackage().python_base_directory / "lib" / "python2.7" / "site-packages"
+        subprocess.run(command, cwd=package_path)
+
     if not Package().windows:
         bdb_env = dict(os.environ)
         bdb_env['BERKELEYDB_DIR'] = f'{ConquestPythonPackage().python_base_directory}'
diff --git a/pyinstaller.patch b/pyinstaller.patch
new file mode 100644
index 0000000..d6c37f1
--- /dev/null
+++ b/pyinstaller.patch
@@ -0,0 +1,13 @@
+diff --git a/PyInstaller/depend/utils.py b/PyInstaller/depend/utils.py
+index 4776676b7..eca1e9dd8 100644
+--- a/PyInstaller/depend/utils.py
++++ b/PyInstaller/depend/utils.py
+@@ -372,6 +372,8 @@ def load_ldconfig_cache():
+     for line in text:
+         # :fixme: this assumes libary names do not contain whitespace
+         m = pattern.match(line)
++        if m is None:
++            continue
+         path = m.groups()[-1]
+         if is_freebsd:
+             # Insert `.so` at the end of the lib's basename. soname