diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..4f3458c
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,12 @@
+# Changelog
+
+## 1.0.0 (2025-12-24)
+
+
+### ⚠ BREAKING CHANGES
+
+* Release v1.0 ([#3](https://github.com/gravity-ui/expresskit-api/issues/3))
+
+### Features
+
+* Release v1.0 ([#3](https://github.com/gravity-ui/expresskit-api/issues/3)) ([310bc8f](https://github.com/gravity-ui/expresskit-api/commit/310bc8f8ed74f9aca399a995cdd31a93c4857c81))
diff --git a/package.json b/package.json
index f96cb40..b648f6c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@gravity-ui/expresskit-api",
-  "version": "0.1.0",
+  "version": "1.0.0",
   "description": "ExpressKit OpenApi Integration",
   "main": "dist/index.js",
   "scripts": {