diff --git a/packages/hathor-rpc-handler/package.json b/packages/hathor-rpc-handler/package.json
index 2475509..661cddd 100644
--- a/packages/hathor-rpc-handler/package.json
+++ b/packages/hathor-rpc-handler/package.json
@@ -31,6 +31,6 @@
   },
   "dependencies": {
     "@hathor/wallet-lib": "2.0.1",
-    "long": "5.2.3"
+    "zod": "3.24.1"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index bbbdcb0..45b6ca8 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -455,10 +455,10 @@ __metadata:
     "@types/node": "npm:20.14.2"
     eslint: "npm:9.4.0"
     jest: "npm:29.7.0"
-    long: "npm:5.2.3"
     ts-jest: "npm:29.1.4"
     typescript: "npm:5.4.5"
     typescript-eslint: "npm:7.13.0"
+    zod: "npm:3.24.1"
   languageName: unknown
   linkType: soft
 
@@ -3570,13 +3570,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"long@npm:5.2.3":
-  version: 5.2.3
-  resolution: "long@npm:5.2.3"
-  checksum: 10c0/6a0da658f5ef683b90330b1af76f06790c623e148222da9d75b60e266bbf88f803232dd21464575681638894a84091616e7f89557aa087fd14116c0f4e0e43d9
-  languageName: node
-  linkType: hard
-
 "lru-cache@npm:^10.0.1, lru-cache@npm:^10.2.0":
   version: 10.4.3
   resolution: "lru-cache@npm:10.4.3"
@@ -4925,3 +4918,10 @@ __metadata:
   checksum: 10c0/8f14c87d6b1b53c944c25ce7a28616896319d95bc46a9660fe441adc0ed0a81253b02b5abdaeffedbeb23bdd25a0bf1c29d2c12dd919aef6447652dd295e3e69
   languageName: node
   linkType: hard
+
+"zod@npm:3.24.1":
+  version: 3.24.1
+  resolution: "zod@npm:3.24.1"
+  checksum: 10c0/0223d21dbaa15d8928fe0da3b54696391d8e3e1e2d0283a1a070b5980a1dbba945ce631c2d1eccc088fdbad0f2dfa40155590bf83732d3ac4fcca2cc9237591b
+  languageName: node
+  linkType: hard