diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 5bae7da..73b8f61 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,11 +1,11 @@
 repos:
--   repo: https://github.com/psf/black
-    rev: 24.8.0
+-   repo: https://github.com/psf/black-pre-commit-mirror
+    rev: 26.5.1
     hooks:
     -   id: black
 
 -   repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v5.0.0
+    rev: v6.0.0
     hooks:
     -   id: check-added-large-files
     -   id: check-case-conflict
diff --git a/clusterking_physics/models/bdlnu/inputs.py b/clusterking_physics/models/bdlnu/inputs.py
index 10d347c..af02668 100644
--- a/clusterking_physics/models/bdlnu/inputs.py
+++ b/clusterking_physics/models/bdlnu/inputs.py
@@ -1,9 +1,8 @@
-""" Input parameters/physical constants. """
+"""Input parameters/physical constants."""
 
 import flavio
 from flavio.parameters import default_parameters as par
 
-
 # inputs now taken from flavio except for running quark masses #  (since
 # we just need them at one scale it is more efficient to write them directly)