diff --git a/pyproject.toml b/pyproject.toml
index 43234e7bb..809814b35 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -35,7 +35,7 @@ dependencies = [
     "pandas==2.1.4",
     "phonopy==2.21.0",
     "pint==0.23",
-    "pyiron_base==0.6.21",
+    "pyiron_base==0.6.22",
     "pylammpsmpi==0.2.11",
     "scipy==1.11.4",
     "scikit-learn==1.3.2",