diff --git a/packages/arb-bridge-eth/package.json b/packages/arb-bridge-eth/package.json
index 8dad1c06f7..30f5b22d5b 100644
--- a/packages/arb-bridge-eth/package.json
+++ b/packages/arb-bridge-eth/package.json
@@ -57,7 +57,7 @@
     "@nomiclabs/hardhat-waffle": "^2.0.1",
     "@typechain/ethers-v5": "^7.0.1",
     "@typechain/hardhat": "^2.3.0",
-    "@types/chai": "^4.2.11",
+    "@types/chai": "^4.3.1",
     "@types/mocha": "^9.0.0",
     "@types/node": "^14.0.13",
     "@typescript-eslint/eslint-plugin": "^4.29.0",
diff --git a/packages/arb-bridge-peripherals/package.json b/packages/arb-bridge-peripherals/package.json
index c2982c7302..eab5e99025 100644
--- a/packages/arb-bridge-peripherals/package.json
+++ b/packages/arb-bridge-peripherals/package.json
@@ -29,7 +29,7 @@
     "@nomiclabs/hardhat-etherscan": "^2.1.0",
     "@nomiclabs/hardhat-waffle": "^2.0.1",
     "@typechain/hardhat": "^2.3.0",
-    "@types/chai": "^4.2.15",
+    "@types/chai": "^4.3.1",
     "@types/mocha": "^9.0.0",
     "@types/node": "^14.14.28",
     "arb-upgrades": "0.0.1",
diff --git a/yarn.lock b/yarn.lock
index 1846586729..9559ce4913 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1055,10 +1055,10 @@
   dependencies:
     "@types/node" "*"
 
-"@types/chai@*", "@types/chai@^4.2.11", "@types/chai@^4.2.15":
-  version "4.3.0"
-  resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.3.0.tgz#23509ebc1fa32f1b4d50d6a66c4032d5b8eaabdc"
-  integrity sha512-/ceqdqeRraGolFTcfoXNiqjyQhZzbINDngeoAq9GoHa8PPK1yNzTaxWjA6BFWp5Ua9JpXEMSS4s5i9tS0hOJtw==
+"@types/chai@*", "@types/chai@^4.3.1":
+  version "4.3.1"
+  resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.3.1.tgz#e2c6e73e0bdeb2521d00756d099218e9f5d90a04"
+  integrity sha512-/zPMqDkzSZ8t3VtxOa4KPq7uzzW978M9Tvh+j7GHKuo6k6GTLxPJ4J5gE5cjfJ26pnXst0N5Hax8Sr0T2Mi9zQ==
 
 "@types/concat-stream@^1.6.0":
   version "1.6.1"
@@ -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"