diff --git a/package-lock.json b/package-lock.json
index 469d88e..0c8da6d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -31,9 +31,9 @@
       }
     },
     "@openzeppelin/contracts": {
-      "version": "2.3.0",
-      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-2.3.0.tgz",
-      "integrity": "sha512-lf8C3oULQAnsu3OTRP4tP5/ddfil6l65Lg3JQCwAIgc99vZ1jz5qeBoETGGGmczxt+bIyMI06WPP2apC74EZag=="
+      "version": "4.4.2",
+      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.4.2.tgz",
+      "integrity": "sha512-NyJV7sJgoGYqbtNUWgzzOGW4T6rR19FmX1IJgXGdapGPWsuMelGJn9h03nos0iqfforCbCB0iYIR0MtIuIFLLw=="
     },
     "@playframe/component": {
       "version": "1.1.1",
diff --git a/package.json b/package.json
index 9ecd2a8..30225a2 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
   },
   "homepage": "https://github.com/blockstack/hello-blockstack#readme",
   "dependencies": {
-    "@openzeppelin/contracts": "^2.3.0",
+    "@openzeppelin/contracts": "^4.4.2",
     "@playframe/playframe": "^1.0.5",
     "blockstack": "^19.3.0",
     "web3-eth-contract": "^1.2.1",