diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6f5ce21..306dad5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,7 +7,19 @@ project adheres to [Semantic Versioning](http://semver.org).
 
 Nothing at the moment.
 
-[unreleased]: https://github.com/thoughtbot/stylelint-config/compare/v1.0.2...HEAD
+[unreleased]: https://github.com/thoughtbot/stylelint-config/compare/v1.1.0...HEAD
+
+## [1.1.0] - 2019-09-09
+
+### Added
+
+- Enabled [`scss/selector-no-union-class-name`] (replacing our custom
+  implementation of linting for this).
+- Enabled [`scss/map-keys-quotes`].
+
+[1.1.0]: https://github.com/thoughtbot/stylelint-config/compare/v1.0.2...v1.1.0
+[`scss/selector-no-union-class-name`]: https://github.com/kristerkari/stylelint-scss/blob/master/src/rules/selector-no-union-class-name/README.md
+[`scss/map-keys-quotes`]: https://github.com/kristerkari/stylelint-scss/blob/master/src/rules/map-keys-quotes/README.md
 
 ## [1.0.2] - 2019-08-06
 
diff --git a/package.json b/package.json
index def0265..79b8b59 100644
--- a/package.json
+++ b/package.json
@@ -23,5 +23,5 @@
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1"
   },
-  "version": "1.0.2"
+  "version": "1.1.0"
 }