diff --git a/Makefile b/Makefile
index 56f8b3f26d..eff8133c21 100644
--- a/Makefile
+++ b/Makefile
@@ -425,7 +425,7 @@ ui-lint:
 
 ui-test:
 	$(NPM_BIN) --prefix awx/ui_next install
-	$(NPM_BIN) run --prefix awx/ui_next test -- --coverage --watchAll=false
+	$(NPM_BIN) run --prefix awx/ui_next test -- --coverage --maxWorkers=4 --watchAll=false
 
 
 # Build a pip-installable package into dist/ with a timestamped version number.