diff --git a/pkgs/bitwig-studio/bitwig-studio3.nix b/pkgs/bitwig-studio/bitwig-studio3.nix
index cfe342d..eb7935f 100644
--- a/pkgs/bitwig-studio/bitwig-studio3.nix
+++ b/pkgs/bitwig-studio/bitwig-studio3.nix
@@ -1,15 +1,22 @@
-{ stdenv, fetchurl, bitwig-studio2, ... }:
+{ stdenv, fetchurl, bitwig-studio2, xorg, ... }:
 
 bitwig-studio2.overrideAttrs (oldAttrs: rec {
   name = "bitwig-studio-${version}";
-  version = "3.0.3";
+  version = "3.1.1";
 
   src = fetchurl {
-    url =
-      "https://downloads.bitwig.com/stable/${version}/bitwig-studio-${version}.deb";
-    sha256 = "162l95imq2fb4blfkianlkymm690by9ri73xf9zigknqf0gacgsa";
+    url = "https://downloads.bitwig.com/stable/${version}/bitwig-studio-${version}.deb";
+    sha256 = "1mgyyl1mr8hmzn3qdmg77km6sk58hyd0gsqr9jksh0a8p6hj24pk";
   };
 
-  buildInputs = bitwig-studio2.buildInputs ++ [ ];
+  buildInputs = bitwig-studio2.buildInputs ++ [ xorg.libXtst ];
+
+  installPhase = ''
+    ${oldAttrs.installPhase}
+
+    # recover commercial jre
+    rm -f $out/libexec/lib/jre
+    cp -r opt/bitwig-studio/lib/jre $out/libexec/lib
+  '';
 
 })