diff --git a/changelogs/4.20.md b/changelogs/4.20.md
index 37a0ef37b..c767b8220 100644
--- a/changelogs/4.20.md
+++ b/changelogs/4.20.md
@@ -71,3 +71,9 @@ Released 6th May 2023.
 ## Fixes
 - Fixed players being forced into flight mode in every game mode.
   - Moral of the story: do not assume anything in Mojang internals does what its name suggests...
+
+# 4.20.5
+Released 30th May 2023.
+
+## Fixes
+- Fixed server crash due to a bug in upstream dependency [`netresearch/jsonmapper`](https://github.com/cweiske/JsonMapper).