diff --git a/packages/airnode-protocol/package.json b/packages/airnode-protocol/package.json
index 380e20f84f..d76c05dae5 100644
--- a/packages/airnode-protocol/package.json
+++ b/packages/airnode-protocol/package.json
@@ -29,7 +29,7 @@
     "write-example-env-file": "hardhat run scripts/write-example-env-file.ts"
   },
   "devDependencies": {
-    "@api3/chains": "^3.4.0",
+    "@api3/chains": "^3.4.2",
     "@nomiclabs/hardhat-ethers": "^2.2.3",
     "@nomiclabs/hardhat-etherscan": "^3.1.7",
     "@nomiclabs/hardhat-waffle": "^2.0.6",
diff --git a/yarn.lock b/yarn.lock
index 5e940d870c..79533702f4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -22,10 +22,10 @@
   dependencies:
     "@openzeppelin/contracts" "4.8.2"
 
-"@api3/chains@^3.4.0":
-  version "3.4.0"
-  resolved "https://registry.yarnpkg.com/@api3/chains/-/chains-3.4.0.tgz#0c1830a32d727f2643a656ae89d82db587f54cea"
-  integrity sha512-3n+MYyzc+4yo+ARC8RS2MqCEybtPII6oG0t0TllJfVxU8/J0BJtvQFxuwtVZJX2SIrOEHjLRQ+CivKp1yOdbXw==
+"@api3/chains@^3.4.2":
+  version "3.4.2"
+  resolved "https://registry.yarnpkg.com/@api3/chains/-/chains-3.4.2.tgz#08c115b05d49ab4fc9d9173d5c4a2af913fd839c"
+  integrity sha512-SS15moQHV4ZjMENDe1dJSj3SPYkWMhxNm5CLzvOsQyXnig9ZFmxZ/Ta9csUeoHdJqm/Du3jvFPuJtqX0B3UM9g==
   dependencies:
     zod "^3.21.4"