diff --git a/CHANGELOG.md b/CHANGELOG.md
index c02686f..b2a7196 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## [unreleased]
 
+## [1.2.1]
+* Improved TypeScript types - Thanks @yanick
+* Check for existence of `process` before testing environment variables - Thanks @yanick
+
 ## [1.2.0]
 * Add TypeScript types - Thanks @yanick (https://github.com/substantial/updeep/pull/83)