diff --git a/earthaccess/auth.py b/earthaccess/auth.py
index 58ed9bc6..d146cb48 100644
--- a/earthaccess/auth.py
+++ b/earthaccess/auth.py
@@ -372,14 +372,14 @@ def _persist_user_credentials(self, username: str, password: str) -> bool:
         my_netrc = Netrc(str(netrc_path))
         my_netrc["urs.earthdata.nasa.gov"] = {"login": username, "password": password}
         my_netrc.save()
-        netrc_file = Path.home() / '.netrc'
+        netrc_file = Path.home() / ".netrc"
 
         # Create and write .urs_cookies file
-        urs_cookies_file = Path.home() / '.urs_cookies'
-        urs_cookies_file.write_text('')
+        urs_cookies_file = Path.home() / ".urs_cookies"
+        urs_cookies_file.write_text("")
 
         # Create and write to .dodsrc file
-        dodsrc_file = Path.home() / '.dodsrc'
+        dodsrc_file = Path.home() / ".dodsrc"
         dodsrc_contents = f"HTTP.COOKIEJAR={urs_cookies_file}\nHTTP.NETRC={netrc_file}"
         dodsrc_file.write_text(dodsrc_contents)