diff --git a/CHANGELOG.md b/CHANGELOG.md
index 21cb0b1..673b899 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -16,6 +16,14 @@ _Breaking changes, which may affect downstream projects, are marked with a_ :war
 
 [#xxx]: https://github.com/bhousel/node-diff3/issues/xxx
 -->
+## 2.1.1
+##### 2021-apr-26
+
+* ([#42]) Fix typo and add TypeScript definition for `patch`
+
+[#42]: https://github.com/bhousel/node-diff3/issues/42
+
+
 ## 2.1.0
 ##### 2020-jul-17
 
diff --git a/package.json b/package.json
index fd39078..5345865 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "node-diff3",
-  "version": "2.1.0",
+  "version": "2.1.1",
   "license": "MIT",
   "repository": "bhousel/node-diff3",
   "description": "A node.js module for text diffing and three-way-merge.",