diff --git a/requirements.txt b/requirements.txt
index eea982f..038435a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -42,7 +42,7 @@ docutils==0.22.2
     # via readme-renderer
 executing==2.2.1
     # via stack-data
-filelock==3.19.1
+filelock==3.20.1
     # via virtualenv
 ghp-import==2.1.0
     # via mkdocs