diff --git a/requirements-dev.txt b/requirements-dev.txt
index a237b7625..b4c52744e 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -6,7 +6,7 @@ django-stubs==1.9.0
 django-stubs-ext==0.3.1
 docopt==0.6.2
 execnet==1.9.0
-filelock==3.0.12
+filelock==3.20.3
 identify==2.2.14
 iniconfig==1.1.1
 mypy==0.910