diff --git a/app/package-lock.json b/app/package-lock.json
index cf565d3..6d56f25 100644
--- a/app/package-lock.json
+++ b/app/package-lock.json
@@ -4329,6 +4329,11 @@
         "wrappy": "1"
       }
     },
+    "openzeppelin-solidity": {
+      "version": "2.5.1",
+      "resolved": "https://registry.npmjs.org/openzeppelin-solidity/-/openzeppelin-solidity-2.5.1.tgz",
+      "integrity": "sha512-oCGtQPLOou4su76IMr4XXJavy9a8OZmAXeUZ8diOdFznlL/mlkIlYr7wajqCzH4S47nlKPS7m0+a2nilCTpVPQ=="
+    },
     "opn": {
       "version": "5.4.0",
       "resolved": "https://registry.npmjs.org/opn/-/opn-5.4.0.tgz",
@@ -6759,9 +6764,9 @@
       }
     },
     "websocket-extensions": {
-      "version": "0.1.3",
-      "resolved": "https://registry.npmjs.org/websocket-extensions/-/websocket-extensions-0.1.3.tgz",
-      "integrity": "sha512-nqHUnMXmBzT0w570r2JpJxfiSD1IzoI+HGVdd3aZ0yNi3ngvQ4jv1dtHt5VGxfI2yj5yqImPhOK4vmIh2xMbGg==",
+      "version": "0.1.4",
+      "resolved": "https://registry.npmjs.org/websocket-extensions/-/websocket-extensions-0.1.4.tgz",
+      "integrity": "sha512-OqedPIGOfsDlo31UNwYbCFMSaO9m9G/0faIHj5/dZFDMFqPTcx6UwqyOy3COEaEOg/9VsGIpdqn62W5KhoKSpg==",
       "dev": true
     },
     "which": {