diff --git a/x402/package.json b/x402/package.json
old mode 100755
new mode 100644
index e7a32bd..0cd0d71
--- a/x402/package.json
+++ b/x402/package.json
@@ -35,7 +35,7 @@
   },
   "dependencies": {
     "@make-software/casper-x402": "^1.0.0",
-    "@x402/core": "^0.1.0",
+    "@x402/core": "^2.19.0",
     "casper-js-sdk": "^5.0.12"
   },
   "devDependencies": {