diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2768d3f9..15e2d89d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## 1.5.1
+
+* Upgraded dependecy for tkinter window. `pyopengltk==0.0.2`.
+
 ## 1.5.0
 
 * Added experimental support for tkinter window. Relies on