diff --git a/CHANGELOG.md b/CHANGELOG.md
index f9a390fa5e8057b93ef2a9f4c0c8124aa5e5a069..039086baf9ea6f9fc08215e6d8f7478aad02c6a9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -31,6 +31,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - `simulate()` and `initialise()` now take a `params` keyword argument that can be used to
   override parameters from other input sources
 
+- The ALMaSS crop data config file
+  `data/crops/almass/crop_data_general.csv` now has extra columns for
+  `is_c4_plant`, `sowingdensity`, and `phase_before_harvest`
+
 ### Deprecated
 
 ### Removed