diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1eb655a..0842e14 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -25,6 +25,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - version string is now correctly formatted and printed
 - precision (# significant digits) of the coordinate files (`get_coord_str` and `get_xyz_str`) increased from 7 to 14
 - catch encoding errors when reading `Turbomole._run_opt` output files
+- bug in the parallelization, leading to a dead `mindlessgen` execution as a consequence of not allowing the required number of cores
 
 ## [0.5.0] - 2024-12-16
 ### Changed