diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4b9be97..00ecbd3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,22 @@
 # @oak/commons Change Log
 
+## Version 0.13.0
+
+- feat: add assert (22ddaa9)
+
+  Oak commons now has an `assert()` function that throws an HTTP error, which is
+  useful when asserting something in middleware or a handler where a more
+  informative response can be sent to the client.
+
+- feat: add keystack (fd092b3)
+
+  Oak commons has taken back over a previous contribution to the Deno std
+  library that was removed. It is used to manage multiple encryption keys and
+  adheres to the interface of the secure cookie map to be able to sign and
+  verify cookies.
+
+- chore: update std dependencies (73b5576)
+
 ## Version 0.12.0
 
 - feat: add `asResponse()` method to HTTP errors (36f8232)
diff --git a/deno.json b/deno.json
index f3ce8a3..99e7c44 100644
--- a/deno.json
+++ b/deno.json
@@ -1,6 +1,6 @@
 {
   "name": "@oak/commons",
-  "version": "0.12.0",
+  "version": "0.13.0",
   "exports": {
     "./assert": "./assert.ts",
     "./cookie_map": "./cookie_map.ts",