diff --git a/package.json b/package.json
index c0680b7..c336bb2 100644
--- a/package.json
+++ b/package.json
@@ -165,7 +165,7 @@
   "devDependencies": {
     "@libp2p/interface-stream-muxer-compliance-tests": "^7.0.3",
     "@types/varint": "^6.0.0",
-    "aegir": "^39.0.7",
+    "aegir": "^40.0.0",
     "cborg": "^2.0.1",
     "delay": "^6.0.0",
     "iso-random-stream": "^2.0.2",