diff --git a/CHANGELOG.md b/CHANGELOG.md
index 04115bbf..48d8448e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,11 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+## [5.1.0] - 2021-01-04
+### Added
+
+- Promise interface for `transcludeString()` and `transcludeFile()` when requiring `hercule/promises`. [@realityking](https://github.com/realityking)
+
 ## [5.0.0] - 2020-06-15
 ### Removed
 
diff --git a/package.json b/package.json
index 0442d6d8..6eb57e31 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "hercule",
-  "version": "5.0.1",
+  "version": "5.1.0",
   "description": "Markdown, API Blueprint and string transclusion",
   "main": "./lib/hercule.js",
   "exports": {