diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 37fcefa..5fdd883 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "1.0.0"
+  ".": "1.1.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 82ab475..b5316e4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,19 @@
 # Changelog
 
+## [1.1.0](https://github.com/eslint/css/compare/css-v1.0.0...css-v1.1.0) (2026-03-25)
+
+
+### Features
+
+* add CSS unit baseline checking ([#403](https://github.com/eslint/css/issues/403)) ([51f24f4](https://github.com/eslint/css/commit/51f24f494860ccd9852f876040de8bcf86013e34))
+
+
+### Bug Fixes
+
+* correctly extract baseline support for CSS functions ([#401](https://github.com/eslint/css/issues/401)) ([a1b5c6f](https://github.com/eslint/css/commit/a1b5c6f5e96d2b63d1804f686bfe30180d483966))
+* update baseline data ([#399](https://github.com/eslint/css/issues/399)) ([235f451](https://github.com/eslint/css/commit/235f451d4ce4af1467ad0a0413ef3b2cf006527d))
+* update baseline data ([#405](https://github.com/eslint/css/issues/405)) ([616558e](https://github.com/eslint/css/commit/616558e87e6cbc1e36cbaa8b13e498203eab2fc2))
+
 ## [1.0.0](https://github.com/eslint/css/compare/css-v0.14.1...css-v1.0.0) (2026-03-08)
 
 
diff --git a/jsr.json b/jsr.json
index 5f6b827..6370ca3 100644
--- a/jsr.json
+++ b/jsr.json
@@ -1,6 +1,6 @@
 {
   "name": "@eslint/css",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "exports": {
     ".": "./dist/index.js"
   },
diff --git a/package.json b/package.json
index fb55730..ddb6052 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@eslint/css",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "description": "CSS linting plugin for ESLint",
   "author": "Nicholas C. Zakas",
   "type": "module",
diff --git a/src/index.js b/src/index.js
index fc529e8..23dac7c 100644
--- a/src/index.js
+++ b/src/index.js
@@ -19,7 +19,7 @@ import rules from "./build/rules.js";
 const plugin = {
 	meta: {
 		name: "@eslint/css",
-		version: "1.0.0", // x-release-please-version
+		version: "1.1.0", // x-release-please-version
 	},
 	languages: {
 		css: new CSSLanguage(),