diff --git a/mpie_cmti/environment.yml b/mpie_cmti/environment.yml
index 8202ae42..50e7d835 100644
--- a/mpie_cmti/environment.yml
+++ b/mpie_cmti/environment.yml
@@ -33,7 +33,7 @@ dependencies:
 - pyiron_potentialfit =0.3.13
 - pyiron_workflow =0.13.3
 - pyiron_gui =0.0.12
-- pyironflow =0.0.20
+- pyironflow =0.0.21
 - python-ace =0.3.1
 - pytorch =2.3.1
 - pyxtal =1.0.9
diff --git a/requirements.txt b/requirements.txt
index ea7cfb25..384113f0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ pyiron-contrib==0.1.19
 pyiron-experimental==0.0.3
 pyiron-workflow==0.13.3
 pyiron-potentialfit==0.3.13
-pyironflow==0.0.20
+pyironflow==0.0.21
 aimsgb==1.1.1
 calphy==1.4.3
 damask==3.0.0