diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 1a90133..a33d909 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -22,7 +22,7 @@ repos:
 
   - repo: https://github.com/astral-sh/ruff-pre-commit
     # Ruff version.
-    rev: v0.14.2
+    rev: v0.16.5
     hooks:
       # Run the linter.
       - id: ruff-check
diff --git a/regtest.py b/regtest.py
index 5b2bb05..d413446 100755
--- a/regtest.py
+++ b/regtest.py
@@ -1,18 +1,18 @@
 #!/usr/bin/env python3
+import difflib
+import glob
+import lzma
 import os
+import re
 import subprocess
 import sys
-import glob
-import time
 import tempfile
+import time
 from itertools import zip_longest
+
 from joblib import Parallel, delayed
 from rich import print as print_rich
 
-import re
-import difflib
-import lzma
-
 # debug = True will use the command-line diff (or xzdiff) to check the results of difflib.
 debug = False