diff --git a/.github/workflows/system-tests.yml b/.github/workflows/system-tests.yml
index f7818927b2a..70f663ddfb0 100644
--- a/.github/workflows/system-tests.yml
+++ b/.github/workflows/system-tests.yml
@@ -11,7 +11,7 @@ on:
 env:
   REGISTRY: ghcr.io
   REPO: ghcr.io/datadog/dd-trace-rb
-  SYSTEM_TESTS_REF: main # This must always be set to `main` on dd-trace-rb's master branch
+  SYSTEM_TESTS_REF: appsec-remove-graphql-status-code-exception-for-ruby # This must always be set to `main` on dd-trace-rb's master branch
 
 jobs:
   build-harness: