diff --git a/package.json b/package.json
index 92a9294..f3d8563 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
   "dependencies": {
     "chai": "^4.3.4",
     "expect": "^28.1.3",
-    "mailslurp-client": "^6.7.4",
+    "mailslurp-client": "^15.21.0",
     "ts-node": "^10.9.2"
   },
   "devDependencies": {