diff --git a/pkgs/applications/misc/slade/git.nix b/pkgs/applications/misc/slade/git.nix
index dfbfbe556699..f263c4ee74dd 100644
--- a/pkgs/applications/misc/slade/git.nix
+++ b/pkgs/applications/misc/slade/git.nix
@@ -1,18 +1,36 @@
-{ lib, stdenv, fetchFromGitHub, cmake, pkg-config, wxGTK, gtk2, sfml, fluidsynth, curl, freeimage, ftgl, glew, zip }:
+{ lib, stdenv, fetchFromGitHub
+, cmake
+, pkg-config
+, wxGTK
+, sfml
+, fluidsynth
+, curl
+, freeimage
+, ftgl
+, glew
+, zip
+, lua
+, fmt
+, mpg123
+}:
 
 stdenv.mkDerivation {
-  name = "slade-git-3.1.2.2018.01.29";
+  name = "slade-git-3.2.0.2021.05.13";
 
   src = fetchFromGitHub {
     owner = "sirjuddington";
     repo = "SLADE";
-    rev = "f7409c504b40c4962f419038db934c32688ddd2e";
-    sha256 = "14icxiy0r9rlcc10skqs1ylnxm1f0f3irhzfmx4sazq0pjv5ivld";
+    rev = "d2e249c89062a44c912a9b86951526edc8735ba0";
+    sha256 = "08dsvx7m7c97jm8fxzivmi1fr47hj53y0lv57clqc35bh2gi62dg";
   };
 
-  cmakeFlags = ["-DNO_WEBVIEW=1"];
+  cmakeFlags = [
+    "-DwxWidgets_CONFIG_EXECUTABLE=${wxGTK}/bin/wx-config"
+    "-DWX_GTK3=OFF"
+    "-DNO_WEBVIEW=1"
+  ];
   nativeBuildInputs = [ cmake pkg-config zip ];
-  buildInputs = [ wxGTK gtk2 sfml fluidsynth curl freeimage ftgl glew ];
+  buildInputs = [ wxGTK wxGTK.gtk sfml fluidsynth curl freeimage ftgl glew lua fmt mpg123 ];
 
   meta = with lib; {
     description = "Doom editor";