diff --git a/requirements.txt b/requirements.txt
index edd5186..d3b5700 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ redis==3.5.3
 requests
 ipaddress==1.0.14
 mecab-python==0.996
-GitPython==2.1.15
+GitPython==3.1.47
 PyYAML
 cchardet==0.3.5
 emoji==2.2.0