diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..46fa1f2
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,11 @@
+# Changelog
+
+## 1.0.0 (2024-01-29)
+
+
+### Features
+
+* Add function to wrap getBadge. ([269f6ab](https://github.com/ryohidaka/chrome-badge/commit/269f6ab452e03408736a327bb20672d1b9ce701d))
+* Add function to wrap setBadge. ([d9c4bd2](https://github.com/ryohidaka/chrome-badge/commit/d9c4bd2ad2a684cf73a5b1b2f5345763b7bfc0a4))
+* Add tests. ([4f40262](https://github.com/ryohidaka/chrome-badge/commit/4f40262fe67dfbd1ee8f08b10a2de54601fc708c))
+* Install chrome. ([e7aa448](https://github.com/ryohidaka/chrome-badge/commit/e7aa4483244fb9964aace5ed6e1eaf57067afdca))
diff --git a/package-lock.json b/package-lock.json
index 63b4ca8..9003ac8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "chrome-badge",
-  "version": "0.1.0",
+  "version": "1.0.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "chrome-badge",
-      "version": "0.1.0",
+      "version": "1.0.0",
       "license": "MIT",
       "devDependencies": {
         "@types/chrome": "^0.0.259",
diff --git a/package.json b/package.json
index 451ff2e..9de60ba 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "chrome-badge",
-  "version": "0.1.0",
+  "version": "1.0.0",
   "description": "Helper for displaying badges in chrome.action API.",
   "keywords": [
     "chrome",