diff --git a/package-lock.json b/package-lock.json
index e4dc9c14..5645e4cc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,7 +11,7 @@
       "license": "MIT",
       "dependencies": {
         "ethers": "^6.9.0",
-        "merkletreejs": "^0.4.0"
+        "merkletreejs": "^0.5.0"
       },
       "devDependencies": {
         "@nomicfoundation/hardhat-toolbox": "^5.0.0",
@@ -7706,9 +7706,9 @@
       }
     },
     "node_modules/merkletreejs": {
-      "version": "0.4.1",
-      "resolved": "https://registry.npmjs.org/merkletreejs/-/merkletreejs-0.4.1.tgz",
-      "integrity": "sha512-W2VSHeGTdAnWtedee+pgGn7SHvncMdINnMeHAaXrfarSaMNLff/pm7RCr/QXYxN6XzJFgJZY+28ejO0lAosW4A==",
+      "version": "0.5.1",
+      "resolved": "https://registry.npmjs.org/merkletreejs/-/merkletreejs-0.5.1.tgz",
+      "integrity": "sha512-iR1MI07/HvioeZUvG9EQorcY6zSun8LCmW4jqNbHdecv2XsOt7qYMHWspcjY//lwaSM8/GUMX7ehpm/+UvqrqQ==",
       "license": "MIT",
       "dependencies": {
         "buffer-reverse": "^1.0.1",
diff --git a/package.json b/package.json
index 10c75458..aaf486ed 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
   "types": "lib/index.d.ts",
   "dependencies": {
     "ethers": "^6.9.0",
-    "merkletreejs": "^0.4.0"
+    "merkletreejs": "^0.5.0"
   },
   "devDependencies": {
     "@nomicfoundation/hardhat-toolbox": "^5.0.0",