diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 5f86a0f8..ac55e67f 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -74,7 +74,7 @@ repos:
 # Python: Ruff linter & formatter
 #   https://docs.astral.sh/ruff/
 - repo: https://github.com/astral-sh/ruff-pre-commit
-  rev: v0.8.6
+  rev: v0.9.1
   hooks:
     # Run the linter
     - id: ruff
diff --git a/src/amrex/extensions/MultiFab.py b/src/amrex/extensions/MultiFab.py
index 11ce9de1..76e0dbe5 100644
--- a/src/amrex/extensions/MultiFab.py
+++ b/src/amrex/extensions/MultiFab.py
@@ -362,15 +362,15 @@ def _process_index(self, index):
             index[i] = slice(start, stop, index[i].step)
         elif isinstance(index[i], tuple):
             # The slice includes ghosts
-            assert (
-                len(index[i]) == 0
-            ), "Indicator to include all ghost cells must be an empty tuple"
+            assert len(index[i]) == 0, (
+                "Indicator to include all ghost cells must be an empty tuple"
+            )
             index[i] = slice(mins_with_ghost[i], maxs_with_ghost[i] + 1)
         else:
             ii = _handle_imaginary_negative_index(index[i], mins[i], maxs[i])
-            assert (
-                mins_with_ghost[i] <= ii and ii <= maxs_with_ghost[i]
-            ), "Index out of range"
+            assert mins_with_ghost[i] <= ii and ii <= maxs_with_ghost[i], (
+                "Index out of range"
+            )
             index[i] = slice(ii, ii + 1)
 
     return index