diff --git a/pkgs/development/python-modules/ydiff/default.nix b/pkgs/development/python-modules/ydiff/default.nix
index e656721e855c..4b0d10f6b161 100644
--- a/pkgs/development/python-modules/ydiff/default.nix
+++ b/pkgs/development/python-modules/ydiff/default.nix
@@ -12,12 +12,12 @@
 
 buildPythonPackage rec {
   pname = "ydiff";
-  version = "1.3";
+  version = "1.4.2";
   format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-ii6EWI7zHT5SVwD6lksfmqth8MnEYoHgU0GlbgHc17g=";
+    hash = "sha256-NpvmI9zeeVTZiXP7nbF4DWTwNTmCvzrIWBjz1i/0UrA=";
   };
 
   patchPhase = ''