diff --git a/README.md b/README.md
index 753a0df..1ac5622 100644
--- a/README.md
+++ b/README.md
@@ -51,6 +51,7 @@ packages
 ├── block-sync-monitor
 ├── deposit-analyzer
 ├── indexer
+├── indexer-cache-validator
 ├── indexer-event-watcher
 ├── indexer-monitor
 ├── messenger-relayer
@@ -58,7 +59,6 @@ packages
 ├── mock-l1-to-l2-relayer
 ├── mock-l2-to-l1-relayer
 ├── predicate
-├── referral
 ├── shared
 ├── token
 ├── token-map-register
@@ -86,6 +86,22 @@ docker build -f docker/Dockerfile -t intmax2-function .
 docker run --rm -p 3000:3000 --env-file .env intmax2-function workspace token start
 ```
 
+
+## Testing
+
+The project uses Vitest for testing. Run tests with the following commands:
+
+```sh
+# Run all tests
+yarn test
+
+# Run tests in watch mode
+yarn test --watch
+
+# Run tests with coverage report
+yarn coverage
+```
+
 ## Redis
 
 ```sh
diff --git a/package.json b/package.json
index 496a328..1ae354d 100644
--- a/package.json
+++ b/package.json
@@ -1,8 +1,8 @@
 {
   "name": "intmax2-function",
-  "version": "1.0.5",
+  "version": "1.0.6",
   "license": "MIT",
-  "description": "A collection of function for INTMAX",
+  "description": "A collection of function for INTMAX2 blockchain",
   "repository": {
     "type": "git",
     "url": "https://github.com/InternetMaximalism/intmax2-function.git"
@@ -18,7 +18,7 @@
     "api"
   ],
   "engines": {
-    "node": ">=18.0.0",
+    "node": ">=20.0.0",
     "yarn": ">=4.0.0"
   },
   "workspaces": [