diff --git a/changelog.md b/changelog.md
index 4d0cc77089..75a550fdb6 100644
--- a/changelog.md
+++ b/changelog.md
@@ -2,6 +2,12 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
+## 5.5.13 - 2021-07-25
+
+### Security
+
+- This version of Firefly III fixes [CVE-2021-3663](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3663)
+
 ## 5.5.12 - 2021-06-03
 
 ⚠️ On July 1st 2021 the Docker tag will change to `fireflyiii/core`. You can already start using the new tag.