diff --git a/pkgs/development/python-modules/daff/default.nix b/pkgs/development/python-modules/daff/default.nix
index d12b3245879b..d5dad88c976b 100644
--- a/pkgs/development/python-modules/daff/default.nix
+++ b/pkgs/development/python-modules/daff/default.nix
@@ -6,11 +6,11 @@
 
 buildPythonPackage rec {
   pname = "daff";
-  version = "1.3.46";
+  version = "1.4.2";
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-ItDan9ajJ1tUySapyXsYD5JYqtZRE+oY8/7FLLrc2Bg=";
+    hash = "sha256-R/A5Htp+K1AR98ysAGuReKzLRlvLlKLJ8oQlf/9dJoY=";
   };
 
   # there are no tests