diff --git a/packages/stark-testing/package-lock.json b/packages/stark-testing/package-lock.json
index 90c0f668b2..53b3d17f18 100644
--- a/packages/stark-testing/package-lock.json
+++ b/packages/stark-testing/package-lock.json
@@ -3375,17 +3375,22 @@
       }
     },
     "karma-typescript-es6-transform": {
-      "version": "5.4.0",
-      "resolved": "https://registry.npmjs.org/karma-typescript-es6-transform/-/karma-typescript-es6-transform-5.4.0.tgz",
-      "integrity": "sha512-IV9o1eVmc5+OT4FGISeE6z74TjBhhphz06Gk3/DOQC+yk61M81bgkwyAvcU9rnAPLbv1XojTdJTxX8ulPKmjYg==",
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/karma-typescript-es6-transform/-/karma-typescript-es6-transform-5.1.0.tgz",
+      "integrity": "sha512-ReniuuReJ6J+ul4ewndMjB3CKOET1a+b8ta7XI4yvGLFjyo2wLJZ+eM/cWrQqnO7aKenLchYJ1B71XM5pF1a8g==",
       "requires": {
         "@babel/core": "^7.11.1",
         "@babel/preset-env": "^7.11.0",
-        "acorn-walk": "^8.0.0",
+        "acorn-walk": "^7.2.0",
         "log4js": "^6.3.0",
         "magic-string": "^0.25.7"
       },
       "dependencies": {
+        "acorn-walk": {
+          "version": "7.2.0",
+          "resolved": "https://registry.npmjs.org/acorn-walk/-/acorn-walk-7.2.0.tgz",
+          "integrity": "sha512-OPdCF6GsMIP+Az+aWfAAOEt2/+iVDKE7oy6lJ098aoe59oAmK76qV6Gw60SbZ8jHuG2wH058GF4pLFbYamYrVA=="
+        },
         "date-format": {
           "version": "3.0.0",
           "resolved": "https://registry.npmjs.org/date-format/-/date-format-3.0.0.tgz",
diff --git a/packages/stark-testing/package.json b/packages/stark-testing/package.json
index 4b09bd65bc..e432958fd1 100644
--- a/packages/stark-testing/package.json
+++ b/packages/stark-testing/package.json
@@ -34,7 +34,7 @@
     "karma-sourcemap-loader": "^0.3.7",
     "karma-typescript": "^5.0.0",
     "karma-typescript-angular2-transform": "^5.0.0",
-    "karma-typescript-es6-transform": "5.4.0",
+    "karma-typescript-es6-transform": "5.1.0",
     "protractor": "^5.4.2",
     "puppeteer": "^7.1.0"
   },