diff --git a/requirements.txt b/requirements.txt
index 7287ffe..c5fb1c7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -42,7 +42,7 @@ docutils==0.14
 entrypoints==0.3
 et-xmlfile==1.0.1
 fastcache==1.0.2
-filelock==3.0.10
+filelock==3.20.1
 Flask==1.0.2
 future==0.17.1
 gevent==1.4.0