diff --git a/.github/workflows/modified_scripts_build.yml b/.github/workflows/modified_scripts_build.yml
index e49e9754..2d31ac05 100644
--- a/.github/workflows/modified_scripts_build.yml
+++ b/.github/workflows/modified_scripts_build.yml
@@ -19,9 +19,16 @@ jobs:
           echo "versions<<$EOF" >> $GITHUB_ENV;
           echo "$versions" >> $GITHUB_ENV;
           echo "$EOF" >> $GITHUB_ENV;
+          
+          versions_cpython_only=$(grep -Ee '^[[:digit:]]' <<<"$version")
+          EOF=$(dd if=/dev/urandom bs=15 count=1 status=none | base64);
+          echo "versions_cpython_only<<$EOF" >> $GITHUB_ENV;
+          echo $versions_cpython_only >> $GITHUB_ENV;
+          echo "$EOF" >> $GITHUB_ENV;
       - id: modified-versions
         run: |
           echo "versions=`echo "${{ env.versions }}" | jq -R . | jq -sc .`" >> $GITHUB_OUTPUT
+          echo "versions_cpython_only=`echo "${{ env.versions_cpython_only }}" | jq -R . | jq -sc .`" >> $GITHUB_OUTPUT
   macos_build:
     needs: discover_modified_scripts
     if: needs.discover_modified_scripts.outputs.versions != '[""]'
@@ -84,11 +91,11 @@ jobs:
 
   macos_build_bundled_dependencies:
     needs: discover_modified_scripts
-    if: needs.discover_modified_scripts.outputs.versions != '[""]'
+    if: needs.discover_modified_scripts.outputs.versions_cpython_only != '[""]'
     strategy:
       fail-fast: false
       matrix:
-        python-version: ${{fromJson(needs.discover_modified_scripts.outputs.versions)}}
+        python-version: ${{fromJson(needs.discover_modified_scripts.outputs.versions_cpython_only)}}
         os: ["macos-13", "macos-14"]
     runs-on: ${{ matrix.os }}
     steps: