diff --git a/pkgs/development/python-modules/sparklines/default.nix b/pkgs/development/python-modules/sparklines/default.nix
index 15181f436e67..9b7c002e40fc 100644
--- a/pkgs/development/python-modules/sparklines/default.nix
+++ b/pkgs/development/python-modules/sparklines/default.nix
@@ -8,14 +8,14 @@
 
 buildPythonPackage rec {
   pname = "sparklines";
-  version = "0.4.2";
+  version = "0.5.0";
   format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "deeplook";
     repo = pname;
-    rev = "v${version}";
-    sha256 = "1hfxp5c4wbyddy7fgmnda819w3dia3i6gqb2323dr2z016p84r7l";
+    rev = "refs/tags/v${version}";
+    sha256 = "sha256-oit1bDqP96wwfTRCV8V0N9P/+pkdW2WYOWT6u3lb4Xs=";
   };
 
   propagatedBuildInputs = [ future ];