diff --git a/setup.py b/setup.py
index 8e240e0..34e9c4e 100644
--- a/setup.py
+++ b/setup.py
@@ -19,7 +19,7 @@
                           "cookies==2.2.1",
                           "docopt==0.6.2",
                           "gitdb==0.6.4",
-                          "GitPython==2.0.2",
+                          "GitPython==3.1.37",
                           "mock==2.0.0",
                           "multi-key-dict==2.0.3",
                           "packaging==16.8",