diff --git a/CHANGELOG.md b/CHANGELOG.md
index 19ce728..253eec8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## v4.1.0
 
+- add `types` ([116335d](https://github.com/watson/is-ci/commit/116335d))
+
+## v4.0.0
+
 - update to `ci-info` v4 ([658c179](https://github.com/watson/is-ci/commit/658c179))
 
 ## v3.0.1
diff --git a/package.json b/package.json
index d18f3e6..f2b50b8 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "is-ci",
-  "version": "4.0.0",
+  "version": "4.1.0",
   "description": "Detect if the current environment is a CI server",
   "bin": "bin.js",
   "type": "commonjs",