diff --git a/package.json b/package.json
index 43cbad5..94d1ba0 100644
--- a/package.json
+++ b/package.json
@@ -139,6 +139,6 @@
   },
   "devDependencies": {
     "aegir": "^40.0.8",
-    "uint8arrays": "^4.0.3"
+    "uint8arrays": "^5.0.1"
   }
 }