diff --git a/pkgs/development/python-modules/watchfiles/default.nix b/pkgs/development/python-modules/watchfiles/default.nix
index 3f75354376dd..2d2b9aa649ca 100644
--- a/pkgs/development/python-modules/watchfiles/default.nix
+++ b/pkgs/development/python-modules/watchfiles/default.nix
@@ -19,7 +19,7 @@
 
 buildPythonPackage rec {
   pname = "watchfiles";
-  version = "0.19.0";
+  version = "0.20.0";
   format = "pyproject";
 
   disabled = pythonOlder "3.7";
@@ -28,13 +28,13 @@ buildPythonPackage rec {
     owner = "samuelcolvin";
     repo = pname;
     rev = "refs/tags/v${version}";
-    hash = "sha256-NmmeoaIfFMNKCcjH6tPnkpflkN35bKlT76MqF9W8LBc=";
+    hash = "sha256-eoKF6uBHgML63DrDlC1zPfDu/mAMoaevttwqHLCKh+M=";
   };
 
   cargoDeps = rustPlatform.fetchCargoTarball {
     inherit src;
     name = "${pname}-${version}";
-    hash = "sha256-9ruk3PMcWNLOIGth5fo91/miyF17lgERWL3F4y4as18=";
+    hash = "sha256-4XqR6pZqPAftZoJqZf+iZWp0c8xv00MDJDDETiGGEDo=";
   };
 
   buildInputs = lib.optionals stdenv.isDarwin [