diff --git a/pkgs/development/python-modules/pysma/default.nix b/pkgs/development/python-modules/pysma/default.nix
index f1005fe0b7a9..5cc86e909f00 100644
--- a/pkgs/development/python-modules/pysma/default.nix
+++ b/pkgs/development/python-modules/pysma/default.nix
@@ -9,11 +9,11 @@
 
 buildPythonPackage rec {
   pname = "pysma";
-  version = "0.3.5";
+  version = "0.4";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "1awcsbk14i2aw01f7b7hrmpn9q6vr9v6la0i9n7ldv1h8rzq6j16";
+    sha256 = "sha256-BOVALVFb/p2q3A4NkvgtwmL5fNvwMCk0hb1L5MRWzHY=";
   };
 
   propagatedBuildInputs = [