diff --git a/package.json b/package.json
index 543e3d9..7cf72ae 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
     "intelli-espower-loader": "^1.0.1",
     "jasmine-core": "^3.1.0",
     "karma": "^2.0.0",
-    "karma-babel-preprocessor": "^7.0.0",
+    "karma-babel-preprocessor": "^8.0.0",
     "karma-chrome-launcher": "^2.0.0",
     "karma-coverage": "^1.0.0",
     "karma-espower-preprocessor": "^1.1.0",