diff --git a/requirements-dev.txt b/requirements-dev.txt
index 66d2221..2b2028e 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -13,7 +13,7 @@ cryptography==50.0.0
 distlib==0.4.0
 docutils==0.22.3
 Events==0.5
-filelock==3.20.3
+filelock==4.2.1
 id==1.5.0
 idna==3.11
 iniconfig==2.3.0