diff --git a/packages/payment-processor/package.json b/packages/payment-processor/package.json
index d5a064e872..dc86aed547 100644
--- a/packages/payment-processor/package.json
+++ b/packages/payment-processor/package.json
@@ -39,7 +39,7 @@
     "test:watch": "yarn test --watch"
   },
   "dependencies": {
-    "@openzeppelin/contracts": "4.7.3",
+    "@openzeppelin/contracts": "4.9.3",
     "@requestnetwork/currency": "0.9.0",
     "@requestnetwork/payment-detection": "0.36.0",
     "@requestnetwork/smart-contracts": "0.29.0",