diff --git a/package.json b/package.json
index 4213eef..c03a59a 100644
--- a/package.json
+++ b/package.json
@@ -46,7 +46,7 @@
   },
   "devDependencies": {
     "@types/sinon": "^9.0.10",
-    "aegir": "^31.0.1",
+    "aegir": "^34.1.0",
     "benchmark": "^2.1.4",
     "sinon": "^9.0.2",
     "util": "^0.12.3"