diff --git a/pkgs/desktops/gnome-3/apps/polari/default.nix b/pkgs/desktops/gnome-3/apps/polari/default.nix
index 02b476c2eea..afeda1ba312 100644
--- a/pkgs/desktops/gnome-3/apps/polari/default.nix
+++ b/pkgs/desktops/gnome-3/apps/polari/default.nix
@@ -1,19 +1,26 @@
 { stdenv, itstool, fetchurl, gdk-pixbuf, adwaita-icon-theme
 , telepathy-glib, gjs, meson, ninja, gettext, telepathy-idle, libxml2, desktop-file-utils
-, pkgconfig, gtk3, glib, libsecret, libsoup, gobject-introspection, appstream-glib
+, pkgconfig, gtk3, glib, libsecret, libsoup, webkitgtk, gobject-introspection, appstream-glib
 , gnome3, wrapGAppsHook, telepathy-logger, gspell, gsettings-desktop-schemas }:
 
 let
   pname = "polari";
-  version = "3.34.1";
+  version = "3.36.0";
 in stdenv.mkDerivation rec {
   name = "${pname}-${version}";
 
   src = fetchurl {
     url = "mirror://gnome/sources/${pname}/${stdenv.lib.versions.majorMinor version}/${name}.tar.xz";
-    sha256 = "0wcfkib673fpys7hcpi5cqc0zgqzqmqvpzjzx4wwmim8lb121x5w";
+    sha256 = "0wi7bpscm4rghlwljilsgrls5dy9p0b27k246a1vrdadjghc69l4";
   };
 
+  patches = [
+    # Upstream runs the thumbnailer by passing it to gjs.
+    # If we wrap it in a shell script, gjs can no longer run it.
+    # Let’s change the code to run the script directly by making it executable and having gjs in shebang.
+    ./make-thumbnailer-wrappable.patch
+  ];
+
   propagatedUserEnvPkgs = [ telepathy-idle telepathy-logger ];
 
   nativeBuildInputs = [
@@ -23,9 +30,13 @@ in stdenv.mkDerivation rec {
 
   buildInputs = [
     gtk3 glib adwaita-icon-theme gsettings-desktop-schemas
-    telepathy-glib telepathy-logger gjs gspell gdk-pixbuf libsecret libsoup
+    telepathy-glib telepathy-logger gjs gspell gdk-pixbuf libsecret libsoup webkitgtk
   ];
 
+  postFixup = ''
+    wrapGApp "$out/share/polari/thumbnailer.js"
+  '';
+
   passthru = {
     updateScript = gnome3.updateScript {
       packageName = pname;
diff --git a/pkgs/desktops/gnome-3/apps/polari/make-thumbnailer-wrappable.patch b/pkgs/desktops/gnome-3/apps/polari/make-thumbnailer-wrappable.patch
new file mode 100644
index 00000000000..0fb09eb154a
--- /dev/null
+++ b/pkgs/desktops/gnome-3/apps/polari/make-thumbnailer-wrappable.patch
@@ -0,0 +1,24 @@
+diff --git a/src/thumbnailer.js b/src/thumbnailer.js
+old mode 100644
+new mode 100755
+index e2ad0a5..7ebf08a
+--- a/src/thumbnailer.js
++++ b/src/thumbnailer.js
+@@ -1,3 +1,4 @@
++#!/usr/bin/env gjs
+ imports.gi.versions.Gdk = '3.0';
+ imports.gi.versions.Gtk = '3.0';
+ 
+diff --git a/src/urlPreview.js b/src/urlPreview.js
+index f17e0be..ccffc32 100644
+--- a/src/urlPreview.js
++++ b/src/urlPreview.js
+@@ -44,7 +44,7 @@ class Thumbnailer {
+     _generateThumbnail(data) {
+         let { filename, uri } = data;
+         this._subProc = Gio.Subprocess.new(
+-            ['gjs', `${pkg.pkgdatadir}/thumbnailer.js`, uri, filename],
++            [`${pkg.pkgdatadir}/thumbnailer.js`, uri, filename],
+             Gio.SubprocessFlags.NONE);
+         this._subProc.wait_async(null, (o, res) => {
+             try {