diff --git a/requirements.txt b/requirements.txt
index f8b347e9..65ac643d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ Babel==2.7.0
 certifi==2019.3.9
 chardet==3.0.4
 docutils==0.14
-filelock==3.0.12
+filelock==3.20.1
 future==0.17.1
 idna==2.8
 imagesize==1.1.0