diff --git a/setup.py b/setup.py
index 72c340e..1b99107 100644
--- a/setup.py
+++ b/setup.py
@@ -13,6 +13,7 @@ setup(
     install_requires=[
         'cryptography',
         'GitPython',
+        'python-gitlab',
         'pycurl',
         'rpkg',
         'six',