diff --git a/pkgs/development/python-modules/filelock/default.nix b/pkgs/development/python-modules/filelock/default.nix
index d5ccc117beff..8eaed65ca73c 100644
--- a/pkgs/development/python-modules/filelock/default.nix
+++ b/pkgs/development/python-modules/filelock/default.nix
@@ -8,13 +8,13 @@
 
 buildPythonPackage rec {
   pname = "filelock";
-  version = "3.3.0";
+  version = "3.4.2";
   format = "pyproject";
   disabled = pythonOlder "3.6";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "8c7eab13dc442dc249e95158bcc12dec724465919bdc9831fdbf0660f03d1785";
+    sha256 = "38b4f4c989f9d06d44524df1b24bd19e167d851f19b50bf3e3559952dddc5b80";
   };
 
   nativeBuildInputs = [