diff --git a/README.md b/README.md
index ef19ce4..6024d35 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,28 @@
 # beefy-balances-api
 
-```
 
+Access api for the CLM subgraph: https://github.com/beefyfinance/beefy-balances-subgraph
+
+## add a new chain
+
+- Add the chain to `src/config/chains.ts`
+- `npm run update:addressbook` 
+- `npm run test:ts` and fix errs
+- `npm run format`
+- `npm run dev` 
+    - http://localhost:4000/api/v1/status
+    - http://localhost:4000/api/v1/holders/counts/all
+    - http://localhost:4000/api/v1/config/:chain/vaults
+    - http://localhost:4000/api/v1/contract/:chain/:vault_address/:block_number/share-tokens-balances
+    
+    
+## Deploy the api
+
+- `npm run deploy` to deploy the api
+
+
+# Test urls
+```
 https://balance-api.beefy.finance/api/v1/status
 http://localhost:4000/api/v1/status
 
diff --git a/package-lock.json b/package-lock.json
index 863142c..1c391a0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -21,7 +21,7 @@
         "@sinclair/typebox": "^0.32.33",
         "@types/lodash-es": "^4.17.12",
         "async-lock": "^1.4.1",
-        "blockchain-addressbook": "^0.47.98",
+        "blockchain-addressbook": "^0.47.107",
         "decimal.js": "^10.4.3",
         "dotenv": "^16.4.5",
         "fastify": "^4.26.2",
@@ -31,7 +31,7 @@
         "lodash": "^4.17.21",
         "node-cache": "^5.1.2",
         "pino": "^8.19.0",
-        "viem": "^2.21.54"
+        "viem": "^2.21.56"
       },
       "devDependencies": {
         "@biomejs/biome": "1.8.2",
@@ -5491,9 +5491,9 @@
       }
     },
     "node_modules/blockchain-addressbook": {
-      "version": "0.47.98",
-      "resolved": "https://registry.npmjs.org/blockchain-addressbook/-/blockchain-addressbook-0.47.98.tgz",
-      "integrity": "sha512-U4FbqU3pb3ZN+/tC+NlL+6V5KUnliOcHnmYbq7Ft3+VuuJaqLoMeC/w1GnfzJvBnd7fSv3FdFTFS3o7nVyYHJA=="
+      "version": "0.47.107",
+      "resolved": "https://registry.npmjs.org/blockchain-addressbook/-/blockchain-addressbook-0.47.107.tgz",
+      "integrity": "sha512-lCRACmURiEIKM6OmJ8TUBzUi6txO2O/A1fhWaMmstMf4t0z5Jlu8FUKrMFxa96brhJAy69th3pI+W5PG9N1bhw=="
     },
     "node_modules/boxen": {
       "version": "7.1.1",
@@ -15760,9 +15760,9 @@
       }
     },
     "node_modules/viem": {
-      "version": "2.21.54",
-      "resolved": "https://registry.npmjs.org/viem/-/viem-2.21.54.tgz",
-      "integrity": "sha512-G9mmtbua3UtnVY9BqAtWdNp+3AO+oWhD0B9KaEsZb6gcrOWgmA4rz02yqEMg+qW9m6KgKGie7q3zcHqJIw6AqA==",
+      "version": "2.21.56",
+      "resolved": "https://registry.npmjs.org/viem/-/viem-2.21.56.tgz",
+      "integrity": "sha512-lHcVd1sFDlVWu482Sb4j22a5+hXJWE8HwqLgXDH49L7mfdA5QHfkQgeyl7K2kKg6pBbPbxIwd9so/u3LcynKTg==",
       "funding": [
         {
           "type": "github",
diff --git a/package.json b/package.json
index 4d02357..402b622 100644
--- a/package.json
+++ b/package.json
@@ -24,6 +24,7 @@
     "package:fix": "ncu -u && npm install",
     "postinstall": "npm --silent run codegen",
     "codegen": "graphql-codegen --config ./src/queries/codegen/codegen.ts",
+    "update:addressbook": "ncu --upgrade blockchain-addressbook viem && i install",
     "lint-staged": "lint-staged"
   },
   "dependencies": {
@@ -38,7 +39,7 @@
     "@sinclair/typebox": "^0.32.33",
     "@types/lodash-es": "^4.17.12",
     "async-lock": "^1.4.1",
-    "blockchain-addressbook": "^0.47.98",
+    "blockchain-addressbook": "^0.47.107",
     "decimal.js": "^10.4.3",
     "dotenv": "^16.4.5",
     "fastify": "^4.26.2",
@@ -48,7 +49,7 @@
     "lodash": "^4.17.21",
     "node-cache": "^5.1.2",
     "pino": "^8.19.0",
-    "viem": "^2.21.54"
+    "viem": "^2.21.56"
   },
   "lint-staged": {
     "src/**/*.{ts,graphql,json}": "biome check --write"
diff --git a/src/config/chains.ts b/src/config/chains.ts
index 3865d9c..d9bc5ea 100644
--- a/src/config/chains.ts
+++ b/src/config/chains.ts
@@ -20,8 +20,9 @@ export enum ChainId {
   optimism = 'optimism',
   polygon = 'polygon',
   rootstock = 'rootstock',
-  sei = 'sei',
   scroll = 'scroll',
+  sei = 'sei',
+  sonic = 'sonic',
   zksync = 'zksync',
 }
 
diff --git a/src/utils/viemClient.ts b/src/utils/viemClient.ts
index 618bf9a..68dc906 100644
--- a/src/utils/viemClient.ts
+++ b/src/utils/viemClient.ts
@@ -7,7 +7,6 @@ import {
   fantom,
   fraxtal,
   gnosis,
-  //kava,
   linea,
   lisk,
   mainnet,
@@ -21,6 +20,7 @@ import {
   rootstock,
   scroll,
   sei,
+  sonic,
   zksync,
 } from 'viem/chains';
 import type { ChainId } from '../config/chains';
@@ -47,6 +47,7 @@ const mapping: Record<ChainId, ViemChain> = {
   rootstock: rootstock,
   scroll: scroll,
   sei: sei,
+  sonic: sonic,
   zksync: zksync,
 };