diff --git a/package.json b/package.json
index c522613..b658485 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
   "devDependencies": {
     "@types/chai": "^4.2.8",
     "@types/mocha": "^8.0.0",
-    "aegir": "^26.0.0",
+    "aegir": "^27.0.0",
     "uint8arrays": "^1.1.0"
   },
   "dependencies": {