diff --git a/tests/requirements_frozen.txt b/tests/requirements_frozen.txt
index 579f120..bf36f21 100644
--- a/tests/requirements_frozen.txt
+++ b/tests/requirements_frozen.txt
@@ -26,7 +26,7 @@ Flask-Login==0.5.0
 Flask-Session==0.4.0
 fonttools==4.29.1
 gitdb==4.0.9
-GitPython==3.1.30
+GitPython==3.1.37
 greenlet==1.1.2
 hyperlink==21.0.0
 idna==3.3