diff --git a/.github/workflows/nightly_ci_build.yml b/.github/workflows/nightly_ci_build.yml
index 8934edad..13788b5f 100644
--- a/.github/workflows/nightly_ci_build.yml
+++ b/.github/workflows/nightly_ci_build.yml
@@ -32,6 +32,10 @@ jobs:
       image: docker://nrel/openstudio:3.7.0
     steps:
       - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.10'
+          cache: 'pip' # caching pip dependencies
       - name: Change Owner of Container Working Directory
       # working dir permissions workaround from https://github.com/actions/runner-images/issues/6775#issuecomment-1377299658
         run: chown root:root .