diff --git a/pkgs/applications/misc/lyx/default.nix b/pkgs/applications/misc/lyx/default.nix
index f7964e4e5c6d..675f0adfc7f8 100644
--- a/pkgs/applications/misc/lyx/default.nix
+++ b/pkgs/applications/misc/lyx/default.nix
@@ -1,14 +1,14 @@
-{ fetchurl, lib, mkDerivation, pkgconfig, python, file, bc, fetchpatch
+{ fetchurl, lib, mkDerivation, pkgconfig, python, file, bc
 , qtbase, qtsvg, hunspell, makeWrapper #, mythes, boost
 }:
 
 mkDerivation rec {
-  version = "2.3.0";
+  version = "2.3.4";
   pname = "lyx";
 
   src = fetchurl {
     url = "ftp://ftp.lyx.org/pub/lyx/stable/2.3.x/${pname}-${version}.tar.xz";
-    sha256 = "0axri2h8xkna4mkfchfyyysbjl7s486vx80p5hzj9zgsvdm5a3ri";
+    sha256 = "0qgvc19flnf6ny3ffyj8civwaxrnwcdlw2v708hg49cbmg6f8igh";
   };
 
   # LaTeX is used from $PATH, as people often want to have it with extra pkgs
@@ -34,13 +34,6 @@ mkDerivation rec {
     " --prefix PATH : ${python}/bin"
   ];
 
-  patches = [
-    (fetchpatch {
-      url = "https://gitweb.gentoo.org/repo/gentoo.git/plain/app-office/lyx/files/lyx-2.3.0-qt-5.11.patch?id=07e82fd1fc07bf055c78b81eaa128f8f837da80d";
-      sha256 = "1bnx0il2iv36lnrnyb370wyvww0rd8bphcy6z8d7zmvd3pwhyfql";
-    })
-  ];
-
   meta = with lib; {
     description = "WYSIWYM frontend for LaTeX, DocBook";
     homepage = http://www.lyx.org;