diff --git a/environment.yml b/environment.yml
index 74d62dd8e5e19e6ca485055987d8a40c2d618fc0..d661cc6779a5e012022386b86d016da39e42c963 100644
--- a/environment.yml
+++ b/environment.yml
@@ -2,6 +2,7 @@ name: workshop
 channels:
 - conda-forge
 dependencies:
+- cmake
 - python =3.8
 - pyiron =0.4.6
 - pyiron_base =0.5.12