diff --git a/package-lock.json b/package-lock.json
index 9e92eead..19482612 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,10 +10,11 @@
       "license": "MIT",
       "devDependencies": {
         "@connext/nxtp-contracts": "0.2.0-beta.20",
+        "@ethereumjs/tx": "3.5.2",
         "@nomiclabs/hardhat-etherscan": "2.1.7",
         "@nomiclabs/hardhat-web3": "2.0.0",
         "@openzeppelin/contracts": "4.6.0",
-        "@openzeppelin/contracts-upgradeable": "4.6.0",
+        "@openzeppelin/contracts-upgradeable": "4.7.3",
         "@openzeppelin/test-helpers": "0.5.15",
         "@superfluid-finance/ethereum-contracts": "1.2.2",
         "@superfluid-finance/sdk-core": "0.4.2",
@@ -32,7 +33,7 @@
         "expect": "26.6.2",
         "fs-extra": "9.0.0",
         "graphql": "16.5.0",
-        "hardhat": "2.9.8",
+        "hardhat": "2.9.9",
         "hardhat-deploy": "0.9.8",
         "hardhat-deploy-ethers": "0.3.0-beta.11",
         "hardhat-gas-reporter": "1.0.3",
@@ -2222,9 +2223,9 @@
       "dev": true
     },
     "node_modules/@openzeppelin/contracts-upgradeable": {
-      "version": "4.6.0",
-      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts-upgradeable/-/contracts-upgradeable-4.6.0.tgz",
-      "integrity": "sha512-5OnVuO4HlkjSCJO165a4i2Pu1zQGzMs//o54LPrwUgxvEO2P3ax1QuaSI0cEHHTveA77guS0PnNugpR2JMsPfA==",
+      "version": "4.7.3",
+      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts-upgradeable/-/contracts-upgradeable-4.7.3.tgz",
+      "integrity": "sha512-+wuegAMaLcZnLCJIvrVUDzA9z/Wp93f0Dla/4jJvIhijRrPabjQbZe6fWiECLaJyfn5ci9fqf9vTw3xpQOad2A==",
       "dev": true
     },
     "node_modules/@openzeppelin/hardhat-upgrades": {
@@ -11419,9 +11420,9 @@
       "dev": true
     },
     "node_modules/hardhat": {
-      "version": "2.9.8",
-      "resolved": "https://registry.npmjs.org/hardhat/-/hardhat-2.9.8.tgz",
-      "integrity": "sha512-K35GDJ5Vrif3kxQMVw6CJvSbUrIg9le3C+E+K0fZGoyVfIQzZNRtoG2/BQw4aWM0MMkwB4YT/roq/HT0mMLQaw==",
+      "version": "2.9.9",
+      "resolved": "https://registry.npmjs.org/hardhat/-/hardhat-2.9.9.tgz",
+      "integrity": "sha512-Qv7SXnRc0zq1kGXruNnSKpP3eFccXMR5Qv6GVX9hBIJ5efN0PflKPq92aQ5Cv3jrjJeRevLznWZVz7bttXhVfw==",
       "dev": true,
       "dependencies": {
         "@ethereumjs/block": "^3.6.2",
@@ -11480,7 +11481,16 @@
         "node": "^12.0.0 || ^14.0.0 || ^16.0.0"
       },
       "peerDependencies": {
-        "chai": "^4.2.0"
+        "ts-node": "*",
+        "typescript": "*"
+      },
+      "peerDependenciesMeta": {
+        "ts-node": {
+          "optional": true
+        },
+        "typescript": {
+          "optional": true
+        }
       }
     },
     "node_modules/hardhat-deploy": {
@@ -23401,9 +23411,9 @@
       "dev": true
     },
     "@openzeppelin/contracts-upgradeable": {
-      "version": "4.6.0",
-      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts-upgradeable/-/contracts-upgradeable-4.6.0.tgz",
-      "integrity": "sha512-5OnVuO4HlkjSCJO165a4i2Pu1zQGzMs//o54LPrwUgxvEO2P3ax1QuaSI0cEHHTveA77guS0PnNugpR2JMsPfA==",
+      "version": "4.7.3",
+      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts-upgradeable/-/contracts-upgradeable-4.7.3.tgz",
+      "integrity": "sha512-+wuegAMaLcZnLCJIvrVUDzA9z/Wp93f0Dla/4jJvIhijRrPabjQbZe6fWiECLaJyfn5ci9fqf9vTw3xpQOad2A==",
       "dev": true
     },
     "@openzeppelin/hardhat-upgrades": {
@@ -30669,9 +30679,9 @@
       }
     },
     "hardhat": {
-      "version": "2.9.8",
-      "resolved": "https://registry.npmjs.org/hardhat/-/hardhat-2.9.8.tgz",
-      "integrity": "sha512-K35GDJ5Vrif3kxQMVw6CJvSbUrIg9le3C+E+K0fZGoyVfIQzZNRtoG2/BQw4aWM0MMkwB4YT/roq/HT0mMLQaw==",
+      "version": "2.9.9",
+      "resolved": "https://registry.npmjs.org/hardhat/-/hardhat-2.9.9.tgz",
+      "integrity": "sha512-Qv7SXnRc0zq1kGXruNnSKpP3eFccXMR5Qv6GVX9hBIJ5efN0PflKPq92aQ5Cv3jrjJeRevLznWZVz7bttXhVfw==",
       "dev": true,
       "requires": {
         "@ethereumjs/block": "^3.6.2",
diff --git a/package.json b/package.json
index 485c24a4..a8d03ec4 100644
--- a/package.json
+++ b/package.json
@@ -75,7 +75,7 @@
     "@nomiclabs/hardhat-etherscan": "2.1.7",
     "@nomiclabs/hardhat-web3": "2.0.0",
     "@openzeppelin/contracts": "4.6.0",
-    "@openzeppelin/contracts-upgradeable": "4.6.0",
+    "@openzeppelin/contracts-upgradeable": "4.7.3",
     "@openzeppelin/test-helpers": "0.5.15",
     "@superfluid-finance/ethereum-contracts": "1.2.2",
     "@superfluid-finance/sdk-core": "0.4.2",