diff --git a/pkgs/development/python-modules/python-smarttub/default.nix b/pkgs/development/python-modules/python-smarttub/default.nix
index 4bca217d6b6f..f705b32a1940 100644
--- a/pkgs/development/python-modules/python-smarttub/default.nix
+++ b/pkgs/development/python-modules/python-smarttub/default.nix
@@ -13,16 +13,16 @@
   python-dateutil,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "python-smarttub";
-  version = "0.0.47";
+  version = "0.0.48";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "mdz";
     repo = "python-smarttub";
-    tag = "v${version}";
-    hash = "sha256-jKNXViqyRFPeHmoUGL9BGUUcVTQ1w3uJy7J8OlFikPw=";
+    tag = "v${finalAttrs.version}";
+    hash = "sha256-+iaRZO4jPpVnE8Tj8SwjMUXS3xB7vd/ztRYNE2B48Ro=";
   };
 
   build-system = [
@@ -48,8 +48,8 @@ buildPythonPackage rec {
   meta = {
     description = "Python API for SmartTub enabled hot tubs";
     homepage = "https://github.com/mdz/python-smarttub";
-    changelog = "https://github.com/mdz/python-smarttub/releases/tag/v${version}";
+    changelog = "https://github.com/mdz/python-smarttub/releases/tag/${finalAttrs.src.tag}";
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ fab ];
   };
-}
+})