diff --git a/javascript/ql/test/query-tests/Security/CWE-915/PrototypePollutingMergeCall/src-vulnerable-lodash/package.json b/javascript/ql/test/query-tests/Security/CWE-915/PrototypePollutingMergeCall/src-vulnerable-lodash/package.json
index bdc06dcd8b13..873053d4a7f7 100644
--- a/javascript/ql/test/query-tests/Security/CWE-915/PrototypePollutingMergeCall/src-vulnerable-lodash/package.json
+++ b/javascript/ql/test/query-tests/Security/CWE-915/PrototypePollutingMergeCall/src-vulnerable-lodash/package.json
@@ -1,5 +1,5 @@
 {
     "dependencies": {
-        "lodash": "4.17.4"
+        "lodash": "4.17.21"
     }
 }