diff --git a/packages/arb-bridge-eth/package.json b/packages/arb-bridge-eth/package.json
index 8a3580f77a..0c7eb1c26d 100644
--- a/packages/arb-bridge-eth/package.json
+++ b/packages/arb-bridge-eth/package.json
@@ -46,7 +46,7 @@
   "dependencies": {
     "@openzeppelin/contracts": "3.4.2",
     "@openzeppelin/contracts-0.8": "npm:@openzeppelin/contracts@^4.3.2",
-    "@openzeppelin/contracts-upgradeable": "3.4.2",
+    "@openzeppelin/contracts-upgradeable": "4.7.1",
     "hardhat": "^2.6.1"
   },
   "devDependencies": {
diff --git a/packages/arb-bridge-peripherals/package.json b/packages/arb-bridge-peripherals/package.json
index 75dccb975f..bb07e3d52c 100644
--- a/packages/arb-bridge-peripherals/package.json
+++ b/packages/arb-bridge-peripherals/package.json
@@ -28,7 +28,7 @@
   ],
   "dependencies": {
     "@openzeppelin/contracts": "3.4.2",
-    "@openzeppelin/contracts-upgradeable": "3.4.2",
+    "@openzeppelin/contracts-upgradeable": "4.7.1",
     "arb-bridge-eth": "0.7.8",
     "arbos-precompiles": "^1.0.2",
     "hardhat": "^2.6.1"
diff --git a/yarn.lock b/yarn.lock
index 1846586729..c9e08102b4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -794,10 +794,10 @@
   resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-4.5.0.tgz#3fd75d57de172b3743cdfc1206883f56430409cc"
   integrity sha512-fdkzKPYMjrRiPK6K4y64e6GzULR7R7RwxSigHS8DDp7aWDeoReqsQI+cxHV1UuhAqX69L1lAaWDxenfP+xiqzA==
 
-"@openzeppelin/contracts-upgradeable@3.4.2":
-  version "3.4.2"
-  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts-upgradeable/-/contracts-upgradeable-3.4.2.tgz#2c2a1b0fa748235a1f495b6489349776365c51b3"
-  integrity sha512-mDlBS17ymb2wpaLcrqRYdnBAmP1EwqhOXMvqWk2c5Q1N1pm5TkiCtXM9Xzznh4bYsQBq0aIWEkFFE2+iLSN1Tw==
+"@openzeppelin/contracts-upgradeable@4.7.1":
+  version "4.7.1"
+  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts-upgradeable/-/contracts-upgradeable-4.7.1.tgz#f63fc384255d6ac139e0a2561aa207fd7c14183c"
+  integrity sha512-5EFiZld3DYFd8aTL8eeMnhnaWh1/oXLXFNuFMrgF3b1DNPshF3LCyO7VR6lc+gac2URJ0BlVcZoCfkk/3MoEfg==
 
 "@openzeppelin/contracts@3.4.2":
   version "3.4.2"
@@ -1583,6 +1583,13 @@ aproba@^1.0.3:
   resolved "https://registry.yarnpkg.com/aproba/-/aproba-1.2.0.tgz#6802e6264efd18c790a1b0d517f0f2627bf2c94a"
   integrity sha512-Y9J6ZjXtoYh8RnXVCMOU/ttDmk1aBjunq9vO0ta5x85WDQiQfUF9sIPBITdbiiIVcBo03Hi3jMxigBtsddlXRw==
 
+arbos-precompiles@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/arbos-precompiles/-/arbos-precompiles-1.0.2.tgz#7bebd5963aef972cd259eb41f3116ea065013ea6"
+  integrity sha512-1dOFYFJUN0kKoofh6buZJ8qCqTs+oLGSsGzHI0trA/Pka/TCERflCRsNVxez2lihOvK7MT/a2RA8AepKtBXdPQ==
+  dependencies:
+    hardhat "^2.6.4"
+
 are-we-there-yet@~1.1.2:
   version "1.1.7"
   resolved "https://registry.yarnpkg.com/are-we-there-yet/-/are-we-there-yet-1.1.7.tgz#b15474a932adab4ff8a50d9adfa7e4e926f21146"