diff --git a/environment.yml b/environment.yml
index 924fd0b..8ac3c6c 100644
--- a/environment.yml
+++ b/environment.yml
@@ -6,7 +6,8 @@ dependencies:
   - python=3.7.*
   - git
   - pip
-  - ipykernel  
+  - ipykernel
+  - ipywidgets
   - geopandas
   - rasterio  
   - imod