diff --git a/.circleci/config.yml b/.circleci/config.yml
index 4ad483992..368af51e9 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -95,7 +95,7 @@ workflows:
             branches:
               only:
                 - main
-                - demo*
+                - "demo*"
 
       - hmpps/deploy_env:
           name: deploy_dev
@@ -145,7 +145,7 @@ workflows:
           filters:
             branches:
               only:
-                -demo*
+                - "demo*"
 
       - hmpps/deploy_env:
           name: deploy_demo_preview
@@ -156,7 +156,7 @@ workflows:
           filters:
             branches:
               only:
-                -demo*
+                - "demo*"
 
       - request-preprod-approval:
           type: approval