diff --git a/azure-pipelines-ci.yml b/azure-pipelines-ci.yml
index a27d7659f1f..871ebeded07 100644
--- a/azure-pipelines-ci.yml
+++ b/azure-pipelines-ci.yml
@@ -40,7 +40,7 @@ stages:
         python -m venv venv
 
         . venv/bin/activate
-        pip install flake8
+        pip install -r requirements_test.txt
       displayName: 'Setup Env'
     - script: |
         . venv/bin/activate