diff --git a/.github/workflows/chart-test.yaml b/.github/workflows/chart-test.yaml
index c2962d8f..3a3760ae 100644
--- a/.github/workflows/chart-test.yaml
+++ b/.github/workflows/chart-test.yaml
@@ -129,14 +129,14 @@ jobs:
       - name: Run chart-testing (install changed)
         id: ct-install
         if: ${{ github.ref != 'refs/heads/main' && steps.list-changed.outputs.changed == 'true' }}
-        run: ct install --target-branch main --chart-dirs charts --chart-dirs other-charts
+        run: ct install --target-branch main --chart-dirs charts --chart-dirs other-charts --excluded-charts charts/rstudio-library
         continue-on-error: true
 
       # no allow-failure until https://github.com/actions/toolkit/issues/399
       - name: Run chart-testing (install all)
         id: ct-install-all
         if: ${{ github.ref == 'refs/heads/main' }}
-        run: ct install --target-branch main --all --chart-dirs charts --chart-dirs other-charts
+        run: ct install --target-branch main --all --chart-dirs charts --chart-dirs other-charts --excluded-charts charts/rstudio-library
         continue-on-error: true
 
       - name: Notify Slack of chart install failure