diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..a9be21b
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,26 @@
+name: Test
+
+on:
+  push:
+    branches:
+    - main
+  pull_request:
+
+jobs:
+  test:
+    name: test
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [18, '*']
+
+    steps:
+      - name: checkout
+        uses: actions/checkout@v2
+      - name: setup node
+        uses: actions/setup-node@v2
+        with:
+          node-version: ${{ matrix.node-version }}
+      - run: npm install
+      - run: npm test
diff --git a/README.md b/README.md
index 381d90b..a63dc44 100644
--- a/README.md
+++ b/README.md
@@ -203,4 +203,4 @@ be used.
 [Gulp PostCSS]: https://github.com/postcss/gulp-postcss
 [Grunt PostCSS]: https://github.com/nDmitry/grunt-postcss
 [PostCSS]: https://github.com/postcss/postcss
-[PostCSS color-mod() Function]: https://github.com/jonathantneal/postcss-color-mod-function
+[PostCSS color-mod() Function]: https://github.com/csstools/postcss-color-mod-function
diff --git a/package-lock.json b/package-lock.json
index a0f2c3d..99d4275 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "postcss-color-mod-function",
-  "version": "4.1.0",
+  "version": "4.1.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "postcss-color-mod-function",
-      "version": "4.1.0",
+      "version": "4.1.1",
       "license": "CC0-1.0",
       "dependencies": {
         "@csstools/convert-colors": "^1.4.0",
diff --git a/package.json b/package.json
index 0134771..f3f3844 100644
--- a/package.json
+++ b/package.json
@@ -1,12 +1,12 @@
 {
   "name": "postcss-color-mod-function",
-  "version": "4.1.0",
+  "version": "4.1.1",
   "description": "Modify colors using the color-mod() function in CSS",
   "author": "Jonathan Neal <jonathantneal@hotmail.com>",
   "license": "CC0-1.0",
   "repository": "jonathantneal/postcss-color-mod-function",
-  "homepage": "https://github.com/jonathantneal/postcss-color-mod-function#readme",
-  "bugs": "https://github.com/jonathantneal/postcss-color-mod-function/issues",
+  "homepage": "https://github.com/csstools/postcss-color-mod-function#readme",
+  "bugs": "https://github.com/csstools/postcss-color-mod-function/issues",
   "main": "index.cjs.js",
   "module": "index.es.mjs",
   "files": [