diff --git a/pkgs/development/python-modules/aioslimproto/default.nix b/pkgs/development/python-modules/aioslimproto/default.nix
index 4fa007c82f14..eba6bf22859c 100644
--- a/pkgs/development/python-modules/aioslimproto/default.nix
+++ b/pkgs/development/python-modules/aioslimproto/default.nix
@@ -8,21 +8,21 @@
   setuptools,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "aioslimproto";
-  version = "3.1.7";
+  version = "3.1.8";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "home-assistant-libs";
     repo = "aioslimproto";
-    tag = version;
-    hash = "sha256-mbzc3Td9XkxDrtPeIbrZdxn8YLV6yjQ+KXgaRC1GdFc=";
+    tag = "v${finalAttrs.version}";
+    hash = "sha256-xHdwikriA6mcb7tmElqa6suINYxeyyGZQ5iO+P7dRCo=";
   };
 
   postPatch = ''
     substituteInPlace pyproject.toml \
-      --replace-fail 'version = "0.0.0"' 'version = "${version}"'
+      --replace-fail 'version = "0.0.0"' 'version = "${finalAttrs.version}"'
   '';
 
   build-system = [ setuptools ];
@@ -41,8 +41,8 @@ buildPythonPackage rec {
   meta = {
     description = "Module to control Squeezebox players";
     homepage = "https://github.com/home-assistant-libs/aioslimproto";
-    changelog = "https://github.com/home-assistant-libs/aioslimproto/releases/tag/${src.tag}";
+    changelog = "https://github.com/home-assistant-libs/aioslimproto/releases/tag/${finalAttrs.src.tag}";
     license = lib.licenses.asl20;
     maintainers = with lib.maintainers; [ fab ];
   };
-}
+})