diff --git a/CHANGELOG.md b/CHANGELOG.md
index e33c0cb1..508ac9cd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,11 @@
+## [1.9.1] - 2018-09-11
+
+### Fixed
+
+- Fix Sass warning about "&&" vs "and" ([#646])
+
+[#646]: https://github.com/thoughtbot/neat/pull/646
+
 ## [1.9.0] - 2017-06-27
 
 ### Added
@@ -247,4 +255,5 @@
 
 - Initial release
 
+[1.9.1]: https://github.com/thoughtbot/neat/compare/v1.9.0...v1.9.1
 [1.9.0]: https://github.com/thoughtbot/neat/compare/v1.8.0...v1.9.0
diff --git a/app/assets/stylesheets/_neat.scss b/app/assets/stylesheets/_neat.scss
index d50ae0c9..98414309 100644
--- a/app/assets/stylesheets/_neat.scss
+++ b/app/assets/stylesheets/_neat.scss
@@ -1,4 +1,4 @@
-// Neat 1.9.0
+// Neat 1.9.1
 // http://neat.bourbon.io
 // Copyright 2012-2015 thoughtbot, inc.
 // MIT License
diff --git a/bower.json b/bower.json
index 42394701..b71e5286 100644
--- a/bower.json
+++ b/bower.json
@@ -1,7 +1,7 @@
 {
   "name": "neat",
   "description": "A lightweight, semantic grid framework",
-  "version": "1.9.0",
+  "version": "1.9.1",
   "main": "app/assets/stylesheets/_neat.scss",
   "license": "MIT",
   "ignore": [
diff --git a/lib/neat/version.rb b/lib/neat/version.rb
index a22247a2..96fb78cc 100644
--- a/lib/neat/version.rb
+++ b/lib/neat/version.rb
@@ -1,3 +1,3 @@
 module Neat
-  VERSION = "1.9.0"
+  VERSION = "1.9.1".freeze
 end
diff --git a/package.json b/package.json
index 4b15d14f..161df29f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "bourbon-neat",
-  "version": "1.9.0",
+  "version": "1.9.1",
   "description": "A lightweight, semantic grid framework",
   "keywords": [
     "columns",