diff --git a/.circleci/config.yml b/.circleci/config.yml
index 5f3ed20ac..b8093d5e2 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -148,6 +148,7 @@ jobs:
             python -m pip install --upgrade pip
             python -m pip install -r .circleci/requirements.txt
             pip install "pytest==7.3.1"
+            pip install "pytest-mock==3.12.0"
             pip install "pytest-asyncio==0.21.1"
             pip install mypy
             pip install "google-generativeai>=0.3.2"