diff --git a/package.json b/package.json
index 53d5a1a..33b15bd 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
     "webcrypto": "~0.1.1"
   },
   "devDependencies": {
-    "aegir": "^17.0.1",
+    "aegir": "^34.1.0",
     "chai": "^4.2.0",
     "dirty-chai": "^2.0.1"
   },