diff --git a/.circleci/config.yml b/.circleci/config.yml
index 494e0b4f7b..e5e94aff2f 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -81,7 +81,7 @@ jobs:
         type: string
       jobsize:
         type: string
-    parallelism: 50
+    parallelism: 10
     steps:
       - browser-tools/install-browser-tools
       - run: