diff --git a/pkgs/by-name/gl/glslviewer/package.nix b/pkgs/by-name/gl/glslviewer/package.nix
index 6180075d63b9..8f323914fee7 100644
--- a/pkgs/by-name/gl/glslviewer/package.nix
+++ b/pkgs/by-name/gl/glslviewer/package.nix
@@ -14,16 +14,17 @@
   libGLU,
   ffmpeg_7,
   ncurses,
+  python3,
 }:
 stdenv.mkDerivation (finalAttrs: {
   pname = "glslviewer";
-  version = "3.2.4";
+  version = "3.5.1";
   src = fetchFromGitHub {
     owner = "patriciogonzalezvivo";
     repo = "glslViewer";
     fetchSubmodules = true;
     tag = finalAttrs.version;
-    hash = "sha256-Ve3wmX5+kABCu8IRe4ySrwsBJm47g1zvMqDbqrpQl88=";
+    hash = "sha256-gQF3hkudQXxI3t1e0Iaa4dYbVc3I7lBekt5jmJLJFpI=";
   };
   nativeBuildInputs = [
     cmake
@@ -40,9 +41,8 @@ stdenv.mkDerivation (finalAttrs: {
     libGLU
     ncurses
     ffmpeg_7
+    python3
   ];
-
-  cmakeFlags = [ "-DCMAKE_POLICY_VERSION_MINIMUM=3.20" ];
   meta = {
     description = "Live GLSL coding renderer";
     homepage = "https://patriciogonzalezvivo.com/2015/glslViewer/";