diff --git a/changelog.txt b/changelog.txt
index a2229169..d62312ce 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,5 +1,9 @@
 -------------------
-from 0.4.0 to 0.4.1
+from 0.5.0 to 0.5.1
+-------------------
+compatibility release
+-------------------
+from 0.4.0 to 0.5.0
 -------------------
 - added:
   + finsupp_conv_subl