diff --git a/package.json b/package.json
index 8b3579a..cd6a048 100644
--- a/package.json
+++ b/package.json
@@ -47,7 +47,7 @@
     "tape": "^5.0.0",
     "type-coverage": "^2.0.0",
     "typescript": "^4.0.0",
-    "xo": "^0.39.0"
+    "xo": "^0.42.0"
   },
   "scripts": {
     "build": "rimraf \"*.d.ts\" && tsc && type-coverage",