diff --git a/.ci_support/environment.yml b/.ci_support/environment.yml
index 656a578..96e5d41 100644
--- a/.ci_support/environment.yml
+++ b/.ci_support/environment.yml
@@ -7,7 +7,7 @@ dependencies:
 - pyiron_base =0.10.2
 - pyiron_atomistics =0.6.13
 - maggma =0.60.2
-- numpy =1.26.4
+- numpy =2.1.1
 - pandas =2.2.3
 - matplotlib-base =3.9.2
 - nbconvert =7.16.4