diff --git a/pkgs/by-name/gi/git-big-picture/package.nix b/pkgs/by-name/gi/git-big-picture/package.nix
index 43d127a2aae7..818fbd13b5b2 100644
--- a/pkgs/by-name/gi/git-big-picture/package.nix
+++ b/pkgs/by-name/gi/git-big-picture/package.nix
@@ -1,26 +1,28 @@
 {
   lib,
   python3Packages,
-  fetchPypi,
+  fetchFromGitHub,
   git,
   graphviz,
 }:
 
 python3Packages.buildPythonApplication rec {
   pname = "git-big-picture";
-  version = "1.1.1";
-  format = "wheel";
+  version = "1.3.0";
+  pyproject = true;
 
-  src = fetchPypi {
-    inherit format version;
-    pname = "git_big_picture"; # underscores needed for working download URL
-    python = "py3"; # i.e. no Python 2.7
-    sha256 = "a20a480057ced1585c4c38497d27a5012f12dd29697313f0bb8fa6ddbb5c17d8";
+  src = fetchFromGitHub {
+    owner = "git-big-picture";
+    repo = "git-big-picture";
+    tag = "v${version}";
+    hash = "sha256-aBwSw7smeRkkXSPY02Cs+jFI1wvgj1JisUny+R8G59E=";
   };
 
+  build-system = with python3Packages; [ setuptools ];
+
   postFixup = ''
     wrapProgram $out/bin/git-big-picture \
-      --prefix PATH ":" ${
+      --prefix PATH : ${
         lib.makeBinPath [
           git
           graphviz