diff --git a/.circleci/config.yml b/.circleci/config.yml
index 4d53c5aa2c..71d11d18c8 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -212,6 +212,7 @@ jobs:
   run-deploy-tag:
     <<: *deploy_tag
 
+version: 2.1
 # Declare a workflow that runs all of our jobs in parallel.
 workflows:
   version: 2.1