diff --git a/package.json b/package.json
index 93a2ca6..d064d0c 100644
--- a/package.json
+++ b/package.json
@@ -171,7 +171,7 @@
     "uint8arrays": "^4.0.3"
   },
   "devDependencies": {
-    "aegir": "^41.0.8"
+    "aegir": "^42.2.2"
   },
   "bin": {
     "test-browser-example": "./bin/test-browser-example.js",