diff --git a/.github/workflows/reusable-drift-check.yml b/.github/workflows/reusable-drift-check.yml
index 237a802..a86aa52 100644
--- a/.github/workflows/reusable-drift-check.yml
+++ b/.github/workflows/reusable-drift-check.yml
@@ -174,6 +174,8 @@ jobs:
           python -m pip install --upgrade pip
           python -m pip install -e . pandas
           python -m pip install --no-deps -e external/QuantPlatformKit
+          # Required when LIFECYCLE_PERFORMANCE_BUCKET is set (PerformanceStore GCS client).
+          python -m pip install "google-cloud-storage>=2.14"
 
       - name: Gate cloud lifecycle writes without GCP auth
         env: