diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index 94c1d528ce7c5404c6f25a16251c541ccfe2d8e2..1bdbebe9160198a26aaa47d9631dd21ceec0d18b 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -1,10 +1,13 @@
 Changes in Release 1.5
 --------------------------------------------------------------------------------
 
+  * Wrapper for OpenMM. This allows for direct access to molecular
+    mechanics functionality from within OST.
   * The compoundslib now features InChI and InChIKeys (machine readable InChI
     hash)
   * Names of compounds are also stored in the compoundslib now
 
+
 Changes in Release 1.4
 --------------------------------------------------------------------------------