diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index d0cc505d4..05b07d86c 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -94,7 +94,7 @@ jobs:
         with:
           path: ${{ steps.pip-cache.outputs.dir }}
           # Look to see if there is a cache hit for the corresponding requirements files
-          # cache will be reset on changes to any requirements or every month
+          # cache will be reset on changes to any requirements or every month.
           key: ${{ runner.os }}-venv-${{ hashFiles('**/requirements.txt') }}-${{ hashFiles('**/requirements-tests.txt') }}
             -${{ hashFiles('**/requirements-extras.txt') }}-${{ hashFiles('**/CI.yml') }}-${{ hashFiles('setup.py') }}
             -${{ steps.date.outputs.date }}