diff --git a/package.json b/package.json
index 64adb1197..0cd01eac9 100644
--- a/package.json
+++ b/package.json
@@ -57,7 +57,7 @@
     "node": ">=18"
   },
   "devDependencies": {
-    "@elastic/request-converter": "8.18.0",
+    "@elastic/request-converter": "9.0.0",
     "@sinonjs/fake-timers": "14.0.0",
     "@types/debug": "4.1.12",
     "@types/ms": "0.7.34",