diff --git a/pkgs/development/python-modules/pysmappee/default.nix b/pkgs/development/python-modules/pysmappee/default.nix
index 25f928ecdf49..8b7b8666e245 100644
--- a/pkgs/development/python-modules/pysmappee/default.nix
+++ b/pkgs/development/python-modules/pysmappee/default.nix
@@ -11,7 +11,7 @@
   setuptools,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "pysmappee";
   version = "0.2.29";
   pyproject = true;
@@ -19,7 +19,7 @@ buildPythonPackage rec {
   src = fetchFromGitHub {
     owner = "smappee";
     repo = "pysmappee";
-    rev = version;
+    tag = finalAttrs.version;
     hash = "sha256-Ffi55FZsZUKDcS4qV46NpRK3VP6axzrL2BO+hYW7J9E=";
   };
 
@@ -45,4 +45,4 @@ buildPythonPackage rec {
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ fab ];
   };
-}
+})