diff --git a/CHANGELOG b/CHANGELOG
index 80442007a4cc7cfe76ab02c30c31c62b63426f71..8664e1a2b7e941764438b511e075a2a2c00b0b2b 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -5,6 +5,12 @@
 Changelog
 ================================================================================
 
+Release 3.x.x
+--------------------------------------------------------------------------------
+
+* Bugfix release: Updates OpenStructure dependency to 2.8.0, fixes issues
+  regarding Singularity container and unit tests.
+
 Release 3.4.0
 --------------------------------------------------------------------------------