diff --git a/package.json b/package.json
index ff4d4ab..db77a81 100644
--- a/package.json
+++ b/package.json
@@ -62,7 +62,7 @@
     "ms": "^2.1.3",
     "secure-json-parse": "^2.4.0",
     "tslib": "^2.4.0",
-    "undici": "^5.1.1"
+    "undici": "~5.1.1"
   },
   "tap": {
     "ts": true,