diff --git a/Tests/Fixtures/TestProject/project.yml b/Tests/Fixtures/TestProject/project.yml
index 4a946709..72d32beb 100644
--- a/Tests/Fixtures/TestProject/project.yml
+++ b/Tests/Fixtures/TestProject/project.yml
@@ -116,7 +116,7 @@ targets:
         - App_iOS_UITests
       gatherCoverageData: true
       disableMainThreadChecker: true
-      stopOnEveryMainThreadCheckerIssue: false
+      stopOnEveryMainThreadCheckerIssue: true
       configVariants:
         - Test
         - Staging