diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0c776c10fe7f4..24608e8524c23 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@
 
   * Added deep copy for shapes: [#1620](https://github.com/dartsim/dart/pull/1620)
   * Fixed grouping of contact constraints: [#1624](https://github.com/dartsim/dart/pull/1624)
+  * Fixed issue with removing skeletons without shapes: [#1624](https://github.com/dartsim/dart/pull/1624)
 
 ### [DART 6.12.1 (2021-11-04)](https://github.com/dartsim/dart/milestone/71?closed=1)
 
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 4fcb822e42f10..b1bef21c5fd82 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -47,7 +47,7 @@ The code doesn't need to be perfect right away, feel free to post work-in-progre
  [Aditya Vamsikrishna](https://github.com/aditya-vk) | bug fix
  [pchorak](https://github.com/pchorak)              | bug fixes
  [acxz](https://github.com/acxz)                    | doxygen warning fix
- [Addisu Taddese](https://github.com/azeey)         | bug fix in ode collision detector, slip effect on contact, velocity and position integration, constraint grouping
+ [Addisu Taddese](https://github.com/azeey)         | bug fix in ode collision detector, slip effect on contact, velocity and position integration, constraint grouping, skeleton unsubscription fix
  [Christoph Hinze](https://github.com/chhinze)      | python bindings
  [Erwin Coumans](https://github.com/erwincoumans)   | build fix on Windows/MSVC
  [Silvio Traversaro](https://github.com/traversaro) | build fix on Windows/MSVC, vcpkg packaging