diff --git a/python-reno.spec b/python-reno.spec
index 62c15e0..c5463f8 100644
--- a/python-reno.spec
+++ b/python-reno.spec
@@ -50,6 +50,7 @@ BuildRequires:  PyYAML
 
 Requires:  python-pbr
 Requires:  python-babel
+Requires:  python-dulwich
 Requires:  PyYAML
 Requires:  python-six
 Requires:  git
@@ -77,6 +78,7 @@ BuildRequires:  python3-PyYAML
 
 Requires:  python3-pbr
 Requires:  python3-babel
+Requires:  python3-dulwich
 Requires:  python3-PyYAML
 Requires:  python3-six
 Requires:  git