diff --git a/singer_sdk/connectors/sql.py b/singer_sdk/connectors/sql.py
index fa08b73f6..b5f8eb757 100644
--- a/singer_sdk/connectors/sql.py
+++ b/singer_sdk/connectors/sql.py
@@ -587,7 +587,9 @@ def schema_exists(self, schema_name: str) -> bool:
             True if the database schema exists, False if not.
         """
         if schema_name not in self._schema_cache:
-            self._schema_cache = set(sqlalchemy.inspect(self._engine).get_schema_names())
+            self._schema_cache = set(
+                sqlalchemy.inspect(self._engine).get_schema_names()
+            )
 
         return schema_name in self._schema_cache