diff --git a/impl/package-lock.json b/impl/package-lock.json
index 1528652..25978bc 100644
--- a/impl/package-lock.json
+++ b/impl/package-lock.json
@@ -2669,9 +2669,9 @@
       }
     },
     "@openzeppelin/contracts": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.1.0.tgz",
-      "integrity": "sha512-TihZitscnaHNcZgXGj9zDLDyCqjziytB4tMCwXq0XimfWkAjBYyk5/pOsDbbwcavhlc79HhpTEpQcrMnPVa1mw=="
+      "version": "4.9.3",
+      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.9.3.tgz",
+      "integrity": "sha512-He3LieZ1pP2TNt5JbkPA4PNT9WC3gOTOlDcFGJW4Le4QKqwmiNJCRt44APfxMxvq7OugU/cqYuPcSBzOw38DAg=="
     },
     "@protobufjs/aspromise": {
       "version": "1.1.2",