diff --git a/.ci_support/environment.yml b/.ci_support/environment.yml
index bc698d8..660637a 100644
--- a/.ci_support/environment.yml
+++ b/.ci_support/environment.yml
@@ -5,7 +5,7 @@ dependencies:
 - coverage
 - codacy-coverage
 - ipywidgets =8.1.0
-- pyiron_base =0.6.3
+- pyiron_base =0.6.4
 - pyiron_atomistics =0.3.1
 - numpy =1.24.3
 - pandas =2.0.3