diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 1745a52f..0d9e8263 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -11,7 +11,7 @@ ci:
 
 repos:
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.16.1
+    rev: v0.16.6
     hooks:
       - id: ruff-check
         args: [ --fix ]
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 0f316c60..a62e207f 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -141,8 +141,10 @@ import galsim as _galsim
 from jax_galsim.core.utils import implements
 from jax.tree_util import register_pytree_node_class
 
-@implements(_galsim.Add,
-        lax_description="Does not support `ChromaticObject` at this point.")
+
+@implements(
+    _galsim.Add, lax_description="Does not support `ChromaticObject` at this point."
+)
 def Add(*args, **kwargs):
     return Sum(*args, **kwargs)
 ```