diff --git a/test/conftest.py b/test/conftest.py
index 09dacb41371657e645ead5e7f7a515ed972379f2..85cfa39f97ac6c20aad797ec198643481ee3fef7 100644
--- a/test/conftest.py
+++ b/test/conftest.py
@@ -60,7 +60,7 @@ class FakerProvider(BaseProvider):
         return self.generator.numerify("SID-#####")
 
     def site_name(self) -> str:
-        site_name = ''.join(self.generator.random_letter().upper() for _ in range(3))
+        site_name = "".join(self.generator.random_letter().upper() for _ in range(3))
 
         if self.generator.boolean():
             digit = self.generator.random_int(min=1, max=9)