diff --git a/package.json b/package.json
index afc2f8b6..5e2bf15a 100644
--- a/package.json
+++ b/package.json
@@ -37,14 +37,14 @@
     "brfs": "^2.0.1",
     "browserify": "^16.2.3",
     "coveralls": "^3.0.2",
-    "karma": "^3.1.4",
+    "karma": "^6.3.4",
     "karma-browserify": "^6.0.0",
     "karma-chrome-launcher": "^2.2.0",
     "karma-mocha": "^1.3.0",
     "mocha": "^5.2.0",
     "mocha-lcov-reporter": "^1.2.0",
     "sinon": "^14.0.0",
-    "xo": "^0.23.0"
+    "xo": "^0.61.0"
   },
   "peerDependenciesMeta": {
     "supports-color": {