Update pre-commit hooks
diff --git a/pre_commit_hooks/check_json.py b/pre_commit_hooks/check_json.py
index 1f2cbf9..8328cc7 100644
--- a/pre_commit_hooks/check_json.py
+++ b/pre_commit_hooks/check_json.py
@@ -2,6 +2,7 @@
 
 import argparse
 import sys
+
 import simplejson