diff --git a/openstack_requirements/tests/files/upper-constraints.txt b/openstack_requirements/tests/files/upper-constraints.txt
index ef2c32849..b65962279 100644
--- a/openstack_requirements/tests/files/upper-constraints.txt
+++ b/openstack_requirements/tests/files/upper-constraints.txt
@@ -355,7 +355,7 @@ openstacksdk===0.9.13
 six===1.10.0
 h2===2.6.0;python_version=='3.4'
 h2===2.6.0;python_version=='3.5'
-dulwich===0.17.1
+dulwich===1.2.5
 kombu===4.0.1
 yaql===1.1.3
 requestsexceptions===1.2.0