diff --git a/setup.cfg b/setup.cfg
index c94ee1c4..6815096a 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -25,7 +25,7 @@ package_dir=
 packages = find:
 install_requires=
     gitpython>3
-    dulwich>=0.21.5
+    dulwich>=0.21.6
     pygit2>=1.10.0
     pygtrie>=2.3.2
     fsspec>=2021.7.0