diff --git a/pkgs/development/python-modules/pyplatec/default.nix b/pkgs/development/python-modules/pyplatec/default.nix
index 4b960f0f7461..85374c323004 100644
--- a/pkgs/development/python-modules/pyplatec/default.nix
+++ b/pkgs/development/python-modules/pyplatec/default.nix
@@ -6,13 +6,12 @@
 
 buildPythonPackage rec {
   pname = "pyplatec";
-  version = "1.4.0";
+  version = "1.4.3";
   format = "setuptools";
 
   src = fetchPypi {
-    pname = "PyPlatec";
-    inherit version;
-    sha256 = "0kqx33flcrrlipccmqs78d14pj5749bp85b6k5fgaq2c7yzz02jg";
+    inherit pname version;
+    sha256 = "sha256-PXQlJtC4Z0ifphqTelOuBQS5wubxCH/f0PSWnE7OeNg=";
   };
 
   env.NIX_CFLAGS_COMPILE = "-std=c++11";