diff --git a/package.json b/package.json
index 5048a2c37..1124d4e49 100644
--- a/package.json
+++ b/package.json
@@ -15,9 +15,9 @@
     "test": "npm run test-unit",
     "posttest": "npm run lint",
     "test-api": "npm run test-api-chromium",
-    "test-api-chromium": "mocha \"**/*.api.js\" --browser chromium --timeout 10000",
-    "test-api-firefox": "mocha \"**/*.api.js\" --browser firefox --timeout 10000",
-    "test-api-webkit": "mocha \"**/*.api.js\" --browser webkit --timeout 10000",
+    "test-api-chromium": "mocha \"**/*.api.js\" --browser chromium --timeout 20000",
+    "test-api-firefox": "mocha \"**/*.api.js\" --browser firefox --timeout 20000",
+    "test-api-webkit": "mocha \"**/*.api.js\" --browser webkit --timeout 20000",
     "pretest-api-chromium": "node ./bin/download_browser.js --browser chromium",
     "pretest-api-firefox": "node ./bin/download_browser.js --browser firefox",
     "pretest-api-webkit": "node ./bin/download_browser.js --browser webkit",