diff --git a/pkgs/applications/emulators/cemu/default.nix b/pkgs/applications/emulators/cemu/default.nix
index 055949bb3b75..6e0db9e02c9f 100644
--- a/pkgs/applications/emulators/cemu/default.nix
+++ b/pkgs/applications/emulators/cemu/default.nix
@@ -1,5 +1,4 @@
 { lib, stdenv, fetchFromGitHub
-, fetchpatch
 , addOpenGLRunpath
 , wrapGAppsHook
 , cmake
@@ -32,15 +31,28 @@
 , nix-update-script
 }:
 
-stdenv.mkDerivation rec {
+let
+  # cemu doesn't build with imgui 1.90.2 or newer:
+  # error: 'struct ImGuiIO' has no member named 'ImeWindowHandle'
+  imgui' = imgui.overrideAttrs rec {
+    version = "1.90.1";
+    src = fetchFromGitHub {
+      owner = "ocornut";
+      repo = "imgui";
+      rev = "v${version}";
+      sha256 = "sha256-gf47uLeNiXQic43buB5ZnMqiotlUfIyAsP+3H7yJuFg=";
+    };
+  };
+
+in stdenv.mkDerivation rec {
   pname = "cemu";
-  version = "2.0-65";
+  version = "2.0-66";
 
   src = fetchFromGitHub {
     owner = "cemu-project";
     repo = "Cemu";
     rev = "v${version}";
-    hash = "sha256-jsDmxol3zZMmpo4whDeUXTzfO+QVK/h6lItXTyJyoak=";
+    hash = "sha256-1s1H2rJuN9lRNanKXxKWMLBOFg5z3IwpJCZCmymAH9Y=";
   };
 
   patches = [
@@ -48,13 +60,6 @@ stdenv.mkDerivation rec {
     # > The following imported targets are referenced, but are missing:
     # > SPIRV-Tools-opt
     ./cmakelists.patch
-
-    # Remove on next release
-    # https://github.com/cemu-project/Cemu/pull/1076
-    (fetchpatch {
-      url = "https://github.com/cemu-project/Cemu/commit/72aacbdcecc064ea7c3b158c433e4803496ac296.patch";
-      hash = "sha256-x+ZVqXgGRSv0VYwJAX35C1p7PnmCHS7iEO+4k8j0/ug=";
-    })
   ];
 
   nativeBuildInputs = [
@@ -75,7 +80,7 @@ stdenv.mkDerivation rec {
     glm
     gtk3
     hidapi
-    imgui
+    imgui'
     libpng
     libusb1
     libzip
@@ -103,7 +108,7 @@ stdenv.mkDerivation rec {
     tag = last (splitString "-" version);
   in ''
     rm -rf dependencies/imgui
-    ln -s ${imgui}/include/imgui dependencies/imgui
+    ln -s ${imgui'}/include/imgui dependencies/imgui
     substituteInPlace src/Common/version.h --replace " (experimental)" "-${tag} (experimental)"
     substituteInPlace dependencies/gamemode/lib/gamemode_client.h --replace "libgamemode.so.0" "${gamemode.lib}/lib/libgamemode.so.0"
   '';