diff --git a/pkgs/tools/misc/gaphor/default.nix b/pkgs/tools/misc/gaphor/default.nix
index c19cb78cecf7..5d49d0e6a4f6 100644
--- a/pkgs/tools/misc/gaphor/default.nix
+++ b/pkgs/tools/misc/gaphor/default.nix
@@ -30,15 +30,18 @@
 
 buildPythonApplication rec {
   pname = "gaphor";
-  version = "2.27.0";
+  version = "3.0.0";
   pyproject = true;
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-MsbEeOop6Osq2Hn6CkorsXt8/bTY//QHW/uCl0FEUN4=";
+    hash = "sha256-I5n0XeZLQw4qje6gwh2aMu5Zo5tuXgESHhkR0xegaYM=";
   };
 
-  pythonRelaxDeps = [ "defusedxml" ];
+  pythonRelaxDeps = [
+    "defusedxml"
+    "gaphas"
+  ];
 
   nativeBuildInputs = [
     copyDesktopItems
@@ -55,18 +58,18 @@ buildPythonApplication rec {
   build-system = [ poetry-core ];
 
   dependencies = [
-    pycairo
-    pygobject3
-    gaphas
-    generic
-    tinycss2
     babel
-    jedi
     better-exceptions
-    pydot
-    pillow
     defusedxml
     dulwich
+    gaphas
+    generic
+    jedi
+    pillow
+    pycairo
+    pydot
+    pygobject3
+    tinycss2
   ];
 
   desktopItems = [
@@ -98,11 +101,12 @@ buildPythonApplication rec {
     updateScript = nix-update-script { };
   };
 
-  meta = with lib; {
+  meta = {
     description = "Simple modeling tool written in Python";
-    maintainers = [ ] ++ lib.teams.gnome-circle.members;
     homepage = "https://github.com/gaphor/gaphor";
-    license = licenses.asl20;
+    changelog = "https://github.com/gaphor/gaphor/releases/tag/${version}";
+    license = lib.licenses.asl20;
+    maintainers = [ ] ++ lib.teams.gnome-circle.members;
     platforms = lib.platforms.linux;
   };
 }