diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3618622..09e2b9f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,15 @@
+# [13.1.0](https://github.com/typographist/core/compare/v13.0.0...v13.1.0) (2019-02-09)
+
+
+### Bug Fixes
+
+* **get-all-values-of:**  remove maximum call stack error ([ebc998a](https://github.com/typographist/core/commit/ebc998a))
+
+
+### Features
+
+* rewritten in an immutable style ([983da8a](https://github.com/typographist/core/commit/983da8a))
+
 # [13.0.0](https://github.com/typographist/core/compare/v12.1.0...v13.0.0) (2019-02-06)
 
 
diff --git a/package.json b/package.json
index 33cd3b3..40b3dda 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@typographist/core",
-  "version": "13.0.0",
+  "version": "13.1.0",
   "description": "Core API for typographist",
   "main": "lib/typographist-core.cjs.js",
   "module": "es/typographist-core.es.js",