diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 9c7538b1..3bfc895d 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -2,10 +2,25 @@ name: CI
 
 on:
   push:
-    branches: [master]
+    branches: [staging, mainnet]
   pull_request:
 
 jobs:
+  wiki_address_check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Use Node.js 16
+        uses: actions/setup-node@v3
+        with:
+          node-version: 16
+          cache: 'yarn'
+
+      - run: yarn install --frozen-lockfile
+
+      - name: Run wikiCheck
+        run: yarn wikiCheck
   test:
     runs-on: ubuntu-latest
     steps:
diff --git a/package.json b/package.json
index dd181269..1ef1119c 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,8 @@
     "format": "prettier --write .",
     "prepublishOnly": "yarn build",
     "pub": "yarn publish --access public",
-    "prepare": "husky install"
+    "prepare": "husky install",
+    "wikiCheck": "node wikiCheck.js "
   },
   "files": [
     "build",
diff --git a/wikiCheck.js b/wikiCheck.js
new file mode 100644
index 00000000..3193bfb8
--- /dev/null
+++ b/wikiCheck.js
@@ -0,0 +1,130 @@
+const https = require('https')
+const fs = require('fs')
+const path = require('path')
+
+const SUPPORTED_CHAINS = ['mainnet', 'sepolia', 'holesky']
+//Updates to the wiki take 5 minutes to show up on this URL
+const WIKI_DEPLOYMENTS_URL =
+  'https://raw.githubusercontent.com/wiki/ensdomains/ens-contracts/ENS-Contract-Deployments.md'
+
+const getRawWikiData = (url) => {
+  return new Promise((resolve, reject) => {
+    https.get(url, (res) => {
+      let data = ''
+
+      res.on('data', (chunk) => {
+        data += chunk
+      })
+
+      res.on('end', () => {
+        resolve(data)
+      })
+
+      res.on('error', (err) => {
+        reject(err)
+      })
+    })
+  })
+}
+
+const getChainDeploymentsFromWiki = (chainIndex, lines) => {
+  const chainName = SUPPORTED_CHAINS[chainIndex]
+  const indexOfChain = lines.findIndex((line) => line.includes(chainName))
+  const indexOfNextChain = lines.findIndex(
+    (line, index) => index > indexOfChain && line.includes('#'),
+  )
+  const startOfChainDeployments = indexOfChain + 3
+
+  if (indexOfNextChain === -1) {
+    //If no next chain, then we are at the end of the file
+    const chainDeployments = lines.slice(startOfChainDeployments, lines.length)
+    return chainDeployments
+  }
+
+  const chainDeployments = lines.slice(
+    startOfChainDeployments,
+    indexOfNextChain,
+  )
+  return chainDeployments
+}
+
+const checkDeployment = (
+  chainName,
+  deploymentFilenames,
+  wikiDeployments,
+  i,
+) => {
+  const deploymentFilename = deploymentFilenames[i]
+
+  const wikiDeploymentString = wikiDeployments.find((wikiDeployment) => {
+    const wikiDeploymentName = wikiDeployment.split('|')[1].trim()
+
+    const match = wikiDeploymentName.match(
+      new RegExp(`${deploymentFilename.split('.')[0].trim()}`),
+    )
+    return match && match?.[0] === match?.input
+  })
+
+  const wikiDeploymentAddress = wikiDeploymentString.substring(
+    wikiDeploymentString.indexOf('[') + 1,
+    wikiDeploymentString.lastIndexOf(']'),
+  )
+  const wikiEtherscanAddress = wikiDeploymentString.substring(
+    wikiDeploymentString.lastIndexOf('/') + 1,
+    wikiDeploymentString.lastIndexOf(')'),
+  )
+
+  const deployment = require(`./deployments/${chainName}/${deploymentFilename}`)
+
+  if (deployment.address !== wikiDeploymentAddress) {
+    throw new Error(
+      `Deployment ${i} in wiki and in the repository do not match for ${chainName}. Wiki: ${wikiDeploymentAddress}, Deployment: ${deployment.address}`,
+    )
+  }
+
+  if (deployment.address !== wikiEtherscanAddress) {
+    throw new Error(
+      `Etherscan address ${i} in wiki and in the repository do not match for ${chainName}. Wiki Etherscan: ${wikiEtherscanAddress}, Deployment: ${deployment.address}`,
+    )
+  }
+}
+
+const checkChain = async (chainIndex, lines) => {
+  const chainName = SUPPORTED_CHAINS[chainIndex]
+  const directoryPath = path.join(__dirname, 'deployments', chainName)
+
+  let deploymentFilenames = []
+
+  const files = await fs.promises.readdir(directoryPath)
+  const jsonFiles = files.filter(
+    (file) => path.extname(file).toLowerCase() === '.json',
+  )
+
+  //Don't include migrations file
+  deploymentFilenames = jsonFiles.slice(1)
+
+  const wikiDeployments = getChainDeploymentsFromWiki(chainIndex, lines)
+
+  if (wikiDeployments.length !== deploymentFilenames.length) {
+    throw new Error(
+      `Number of deployments in wiki and in the repository do not match for ${SUPPORTED_CHAINS[chainIndex]}`,
+    )
+  }
+
+  for (let i = 0; i < wikiDeployments.length; i++) {
+    checkDeployment(chainName, deploymentFilenames, wikiDeployments, i)
+  }
+}
+
+const run = async () => {
+  const data = await getRawWikiData(WIKI_DEPLOYMENTS_URL)
+  const lines = data.split('\n')
+
+  for (let i = 0; i < SUPPORTED_CHAINS.length; i++) {
+    await checkChain(i, lines)
+  }
+
+  console.log('All deployments match')
+}
+
+run()