diff --git a/package.json b/package.json
index 88e6f7bb..fb370e1c 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "test_build": "rollup -c",
     "test": "yarn test:node && yarn test:web",
     "test:node": "jest",
-    "test:web": "./node_modules/karma/bin/karma start karma.conf.js --auto-watch",
+    "test:web": "node ./node_modules/karma/bin/karma start karma.conf.js --auto-watch",
     "test:build": "cd ./scripts && jest check-build.test.js",
     "test:build:web": "node ./scripts/proxy-browser-test.js",
     "watch:test": "jest --watch",
diff --git a/scripts/proxy-browser-test.js b/scripts/proxy-browser-test.js
index 5d986585..9e3fdc15 100644
--- a/scripts/proxy-browser-test.js
+++ b/scripts/proxy-browser-test.js
@@ -34,7 +34,7 @@ const stop = () => {
 if (!process.env.CI) {
   start();
   require('child_process').execSync(
-    './node_modules/karma/bin/karma start ./scripts/karma.conf.js',
+    'node ./node_modules/karma/bin/karma start ./scripts/karma.conf.js',
     { stdio: [0, 1, 2] }
   );
   stop();