diff --git a/requirements.txt b/requirements.txt
index 027ec87..ff7e664 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ bottle==0.12.19
 certifi==2018.8.24
 chardet==3.0.4
 gitdb2==2.0.4
-GitPython==2.1.11
+GitPython==3.1.27
 gramfuzz==1.2.0
 idna==2.7
 PyJFuzz==1.1.0