diff --git a/svn_mirror/git_to_svn.py b/svn_mirror/git_to_svn.py
index a78659c..19f3ce3 100644
--- a/svn_mirror/git_to_svn.py
+++ b/svn_mirror/git_to_svn.py
@@ -133,8 +133,8 @@ def _ensure_wc(mirror: Mirror, svn_branch: str):
                  timeout=300, auth_args=auth_args)
     else:
         logger.debug("Updating SVN WC for %s …", svn_branch)
-        _run_svn(["revert", "-R", "."], timeout=120, wc=wc)
-        _run_svn(["update", "--ignore-externals"], timeout=120, wc=wc)
+        _run_svn(["revert", "-R", "."], timeout=120, wc=wc, auth_args=auth_args)
+        _run_svn(["update", "--ignore-externals"], timeout=120, wc=wc, auth_args=auth_args)
     return wc