diff --git a/.circleci/config.yml b/.circleci/config.yml
index 91f36c037..2727cd221 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -59,6 +59,7 @@ jobs:
             pip install google-cloud-aiplatform
             pip install prometheus-client==0.20.0
             pip install "pydantic==2.7.1"
+            pip install "diskcache==5.6.1"
       - save_cache:
           paths:
             - ./venv
diff --git a/litellm/tests/test_completion.py b/litellm/tests/test_completion.py
index ccc73a260..02f36623f 100644
--- a/litellm/tests/test_completion.py
+++ b/litellm/tests/test_completion.py
@@ -93,7 +93,7 @@ def _openai_mock_response(*args, **kwargs) -> litellm.ModelResponse:
 
 def test_null_role_response():
     """
-    Test if api returns 'null' role, 'assistant' role is still returned
+    Test if the api returns 'null' role, 'assistant' role is still returned
     """
     import openai