diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 65880ae6..0702b808 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -40,6 +40,9 @@ stages:
             displayName: Lock dependencies
           - script: pipenv install --system --deploy --dev
             displayName: Install dependencies
+          - script: pip install dataclasses
+            displayName: Installing dataclasses
+            condition: eq(python.version, '3.6')
           - script: isort apps/controllerx/ tests/ --check
             displayName: Organize imports (isort)
           - script: black apps/controllerx/ tests/ --check