diff --git a/pkgs/misc/emulators/pcsx2/default.nix b/pkgs/misc/emulators/pcsx2/default.nix
index 1924452e2abe..6f28c5777ca1 100644
--- a/pkgs/misc/emulators/pcsx2/default.nix
+++ b/pkgs/misc/emulators/pcsx2/default.nix
@@ -1,58 +1,66 @@
-{ alsaLib, cmake, fetchFromGitHub, glib, gtk2, gettext, libaio, libpng
-, makeWrapper, perl, pkgconfig, portaudio, SDL2, soundtouch, stdenv
-, wxGTK30, zlib }:
+{ alsaLib, cmake, fetchFromGitHub, glib, gettext, gtk2, harfbuzz, lib, libaio
+, libpng, libpcap, libxml2, makeWrapper, perl, pkgconfig, portaudio
+, SDL2, soundtouch, stdenv, udev, wxGTK, zlib
+}:
 
 stdenv.mkDerivation rec {
   pname = "pcsx2";
-  version = "1.4.0";
+  version = "unstable-2020-01-05";
 
   src = fetchFromGitHub {
     owner = "PCSX2";
     repo = "pcsx2";
-    rev = "v${version}";
-    sha256 = "0s7mxq2cgzwjfsq0vhpz6ljk7wr725nxg48128iyirf85585l691";
+    rev = "9c12937351c51b921e1f28d44b019bc52e747c51";
+    sha256 = "0y1f5v99a6njmf6hyvl4z5xnrm7351rkyw2fn4f09hqn92r7zmi5";
   };
 
   postPatch = "sed '1i#include \"x86intrin.h\"' -i common/src/x86emitter/cpudetect.cpp";
 
-  configurePhase = ''
-    mkdir -p build
-    cd build
-
-    cmake \
-      -DBIN_DIR="$out/bin" \
-      -DCMAKE_BUILD_PO=TRUE \
-      -DCMAKE_BUILD_TYPE=Release \
-      -DCMAKE_INSTALL_PREFIX="$out" \
-      -DDISABLE_ADVANCE_SIMD=TRUE \
-      -DDISABLE_PCSX2_WRAPPER=TRUE \
-      -DDOC_DIR="$out/share/doc/pcsx2" \
-      -DGAMEINDEX_DIR="$out/share/pcsx2" \
-      -DGLSL_SHADER_DIR="$out/share/pcsx2" \
-      -DGTK2_GLIBCONFIG_INCLUDE_DIR='${glib.out}/lib/glib-2.0/include' \
-      -DGTK2_GDKCONFIG_INCLUDE_DIR='${gtk2.out}/lib/gtk-2.0/include' \
-      -DGTK2_INCLUDE_DIRS='${gtk2.dev}/include/gtk-2.0' \
-      -DPACKAGE_MODE=TRUE \
-      -DPLUGIN_DIR="$out/lib/pcsx2" \
-      -DREBUILD_SHADER=TRUE \
-      -DXDG_STD=TRUE \
-      ..
-  '';
+  cmakeFlags = [
+    "-DCMAKE_INSTALL_PREFIX=${placeholder "out"}"
+    "-DDISABLE_ADVANCE_SIMD=TRUE"
+    "-DDISABLE_PCSX2_WRAPPER=TRUE"
+    "-DDOC_DIR=${placeholder "out"}/share/doc/pcsx2"
+    "-DGAMEINDEX_DIR=${placeholder "out"}/share/pcsx2"
+    "-DGLSL_SHADER_DIR=${placeholder "out"}/share/pcsx2"
+    "-DwxWidgets_LIBRARIES=${wxGTK}/lib"
+    "-DwxWidgets_INCLUDE_DIRS=${wxGTK}/include"
+    "-DwxWidgets_CONFIG_EXECUTABLE=${wxGTK}/bin/wx-config"
+    "-DPACKAGE_MODE=TRUE"
+    "-DPLUGIN_DIR=${placeholder "out"}/lib/pcsx2"
+    "-DREBUILD_SHADER=TRUE"
+    "-DXDG_STD=TRUE"
+    "-DGTK2_GLIBCONFIG_INCLUDE_DIR=${glib.out}/lib/glib-2.0/include"
+    "-DGTK2_GDKCONFIG_INCLUDE_DIR=${gtk2.out}/lib/gtk-2.0/include"
+    "-DGTK2_INCLUDE_DIRS=${gtk2.dev}/include/gtk-2.0"
+    "-DGTK3_API=FALSE"
+  ];
 
   postFixup = ''
     wrapProgram $out/bin/PCSX2 \
       --set __GL_THREADED_OPTIMIZATIONS 1
   '';
 
-  nativeBuildInputs = [ cmake perl pkgconfig ];
+  nativeBuildInputs = [ cmake makeWrapper perl pkgconfig ];
 
   buildInputs = [
-    alsaLib glib gettext gtk2 libaio libpng makeWrapper portaudio SDL2
-    soundtouch wxGTK30 zlib
+    alsaLib
+    glib
+    gettext
+    gtk2
+    harfbuzz
+    libaio
+    libpcap
+    libpng
+    libxml2
+    portaudio
+    SDL2
+    soundtouch
+    udev
+    wxGTK
+    zlib
   ];
 
-  enableParallelBuilding = true;
-
   meta = with stdenv.lib; {
     description = "Playstation 2 emulator";
     longDescription= ''
@@ -62,7 +70,7 @@ stdenv.mkDerivation rec {
       states and PS2 system memory. This allows you to play PS2 games on your
       PC, with many additional features and benefits.
     '';
-    homepage = https://pcsx2.net;
+    homepage = "https://pcsx2.net";
     maintainers = with maintainers; [ hrdinka ];
 
     # PCSX2's source code is released under LGPLv3+. It However ships
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 157e6fb06f86..97578383ee71 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -20674,7 +20674,9 @@ in
     ffmpeg = ffmpeg_2;
   };
 
-  pcsx2 = pkgsi686Linux.callPackage ../misc/emulators/pcsx2 { };
+  pcsx2 = pkgsi686Linux.callPackage ../misc/emulators/pcsx2 {
+    wxGTK = pkgsi686Linux.wxGTK30;
+  };
 
   pekwm = callPackage ../applications/window-managers/pekwm { };