diff --git a/pkgs/applications/audio/soundconverter/default.nix b/pkgs/applications/audio/soundconverter/default.nix
index 27238e36d088..5e5303bb1da3 100644
--- a/pkgs/applications/audio/soundconverter/default.nix
+++ b/pkgs/applications/audio/soundconverter/default.nix
@@ -1,17 +1,29 @@
-{ lib, fetchurl
-# Optional due to unfree license.
-, faacSupport ? false
-, glib, python3Packages, gtk3, wrapGAppsHook3
-, gsettings-desktop-schemas, intltool, xvfb-run
-, gobject-introspection, gst_all_1, fdk-aac-encoder }:
+{
+  lib,
+  # Optional due to unfree license.
+  faacSupport ? false,
+  fetchFromGitHub,
+  glib,
+  python3Packages,
+  gtk3,
+  wrapGAppsHook3,
+  gsettings-desktop-schemas,
+  intltool,
+  xvfb-run,
+  gobject-introspection,
+  gst_all_1,
+  fdk-aac-encoder,
+}:
 
 python3Packages.buildPythonApplication rec {
   pname = "soundconverter";
-  version = "4.0.3";
+  version = "4.0.5";
 
-  src = fetchurl {
-    url = "https://launchpad.net/soundconverter/trunk/${version}/+download/${pname}-${version}.tar.gz";
-    sha256 = "sha256-hzIG/4LD3705erPYvXb7uoRwF9LtKKIKB3jrhpYMsZ0=";
+  src = fetchFromGitHub {
+    owner = "kassoulet";
+    repo = "soundconverter";
+    rev = version;
+    hash = "sha256-sno5EOh8HHfBTIE67VA8mheYp5wUMFRCbcS2EtKES3c=";
   };
 
   buildInputs = [
@@ -30,16 +42,14 @@ python3Packages.buildPythonApplication rec {
     gobject-introspection
   ];
 
-  propagatedBuildInputs = [
-    python3Packages.gst-python
-    python3Packages.distutils-extra
-    python3Packages.setuptools
-    python3Packages.pygobject3
+  dependencies = with python3Packages; [
+    gst-python
+    distutils-extra
+    setuptools
+    pygobject3
   ];
 
-  nativeCheckInputs = [
-    xvfb-run
-  ];
+  nativeCheckInputs = [ xvfb-run ];
 
   postPatch = ''
     substituteInPlace  bin/soundconverter --replace \
@@ -47,19 +57,31 @@ python3Packages.buildPythonApplication rec {
       "DATA_PATH = '$out/share/soundconverter'"
   '';
 
-  preCheck = let
-    self = { outPath = "$out"; name = "${pname}-${version}"; };
-    xdgPaths = lib.concatMapStringsSep ":" glib.getSchemaDataDirPath;
-  in ''
-    export HOME=$TMPDIR
-    export XDG_DATA_DIRS=$XDG_DATA_DIRS:${xdgPaths [gtk3 gsettings-desktop-schemas self]}
-    # FIXME: Fails due to weird Gio.file_parse_name() behavior.
-    sed -i '49 a\    @unittest.skip("Gio.file_parse_name issues")' tests/testcases/names.py
-  '' + lib.optionalString (!faacSupport) ''
-    substituteInPlace tests/testcases/integration.py --replace \
-      "for encoder in ['fdkaacenc', 'faac', 'avenc_aac']:" \
-      "for encoder in ['fdkaacenc', 'avenc_aac']:"
-  '';
+  preCheck =
+    let
+      self = {
+        outPath = "$out";
+        name = "${pname}-${version}";
+      };
+      xdgPaths = lib.concatMapStringsSep ":" glib.getSchemaDataDirPath;
+    in
+    ''
+      export HOME=$TMPDIR
+      export XDG_DATA_DIRS=$XDG_DATA_DIRS:${
+        xdgPaths [
+          gtk3
+          gsettings-desktop-schemas
+          self
+        ]
+      }
+      # FIXME: Fails due to weird Gio.file_parse_name() behavior.
+      sed -i '49 a\    @unittest.skip("Gio.file_parse_name issues")' tests/testcases/names.py
+    ''
+    + lib.optionalString (!faacSupport) ''
+      substituteInPlace tests/testcases/gui_integration.py --replace \
+        "for encoder in ['fdkaacenc', 'faac', 'avenc_aac']:" \
+        "for encoder in ['fdkaacenc', 'avenc_aac']:"
+    '';
 
   checkPhase = ''
     runHook preCheck
@@ -70,7 +92,13 @@ python3Packages.buildPythonApplication rec {
   # Necessary to set GDK_PIXBUF_MODULE_FILE.
   strictDeps = false;
 
-  meta = with lib; {
+  dontWrapGApps = true;
+
+  preFixup = ''
+    makeWrapperArgs+=("''${gappsWrapperArgs[@]}")
+  '';
+
+  meta = {
     homepage = "https://soundconverter.org/";
     description = "Leading audio file converter for the GNOME Desktop";
     mainProgram = "soundconverter";
@@ -79,8 +107,11 @@ python3Packages.buildPythonApplication rec {
       and writes WAV, FLAC, MP3, AAC and Ogg Vorbis files.
       Uses Python and GTK+ GUI toolkit, and runs on X Window System.
     '';
-    license = licenses.gpl3Only;
-    platforms = platforms.linux;
-    maintainers = with maintainers; [ jakubgs ];
+    license = lib.licenses.gpl3Only;
+    platforms = lib.platforms.linux;
+    maintainers = with lib.maintainers; [
+      jakubgs
+      aleksana
+    ];
   };
 }