diff --git a/pkgs/tools/networking/networkmanager/fortisslvpn/default.nix b/pkgs/tools/networking/networkmanager/fortisslvpn/default.nix
index f97bac13cf7f..e9608741816f 100644
--- a/pkgs/tools/networking/networkmanager/fortisslvpn/default.nix
+++ b/pkgs/tools/networking/networkmanager/fortisslvpn/default.nix
@@ -1,4 +1,5 @@
-{ lib, stdenv
+{ stdenv
+, lib
 , fetchurl
 , substituteAll
 , openfortivpn
@@ -7,23 +8,24 @@
 , file
 , glib
 , gtk3
+, gtk4
 , networkmanager
 , ppp
 , libsecret
 , withGnome ? true
 , gnome
-, fetchpatch
 , libnma
+, libnma-gtk4
 }:
 
 stdenv.mkDerivation rec {
   pname = "NetworkManager-fortisslvpn";
-  version = "1.2.10";
+  version = "1.4.0";
   name = "${pname}${if withGnome then "-gnome" else ""}-${version}";
 
   src = fetchurl {
     url = "mirror://gnome/sources/${pname}/${lib.versions.majorMinor version}/${pname}-${version}.tar.xz";
-    sha256 = "1sw66cxgs4in4cjp1cm95c5ijsk8xbbmq4ykg2jwqwgz6cf2lr3s";
+    sha256 = "sFXiY0m1FrI1hXmKs+9XtDawFIAOkqiscyz8jnbF2vo=";
   };
 
   patches = [
@@ -31,12 +33,6 @@ stdenv.mkDerivation rec {
       src = ./fix-paths.patch;
       inherit openfortivpn;
     })
-
-    # Don't use etc/dbus-1/system.d
-    (fetchpatch {
-      url = "https://gitlab.gnome.org/GNOME/NetworkManager-fortisslvpn/merge_requests/11.patch";
-      sha256 = "0l7l2r1njh62lh2pf497ibf99sgkvjsj58xr76qx3jxgq9zfw6n9";
-    })
   ];
 
   nativeBuildInputs = [
@@ -52,12 +48,15 @@ stdenv.mkDerivation rec {
     glib
   ] ++ lib.optionals withGnome [
     gtk3
+    gtk4
     libsecret
     libnma
+    libnma-gtk4
   ];
 
   configureFlags = [
     "--with-gnome=${if withGnome then "yes" else "no"}"
+    "--with-gtk4=${if withGnome then "yes" else "no"}"
     "--localstatedir=/var"
     "--enable-absolute-paths"
   ];
diff --git a/pkgs/tools/networking/networkmanager/fortisslvpn/fix-paths.patch b/pkgs/tools/networking/networkmanager/fortisslvpn/fix-paths.patch
index a1241b6738c2..9176a3bf042b 100644
--- a/pkgs/tools/networking/networkmanager/fortisslvpn/fix-paths.patch
+++ b/pkgs/tools/networking/networkmanager/fortisslvpn/fix-paths.patch
@@ -1,11 +1,12 @@
+diff --git a/src/nm-fortisslvpn-service.c b/src/nm-fortisslvpn-service.c
+index 6c340d0..995c981 100644
 --- a/src/nm-fortisslvpn-service.c
 +++ b/src/nm-fortisslvpn-service.c
-@@ -387,7 +387,7 @@
+@@ -182,6 +182,7 @@ nm_find_openfortivpn (void)
  {
  	static const char *openfortivpn_binary_paths[] =
  		{
--			"/bin/openfortivpn",
 +			"@openfortivpn@/bin/openfortivpn",
- 			"/usr/bin/openfortivpn",
  			"/usr/local/bin/openfortivpn",
+ 			"/usr/bin/openfortivpn",
  			NULL