diff --git a/.vscode/tasks.json b/.vscode/tasks.json
index e4600fd..ad87ddf 100644
--- a/.vscode/tasks.json
+++ b/.vscode/tasks.json
@@ -2,7 +2,7 @@
     "tasks": [
         {
             "type": "cppbuild",
-            "label": "C/C++: g++-11 build active file",
+            "label": "C/C++: g++-20 build active file",
             "command": "/usr/bin/g++",
             "args": [
                 "-g",
diff --git a/Engine/engine/match b/Engine/engine/match
index a44b145..5314c3a 100755
Binary files a/Engine/engine/match and b/Engine/engine/match differ
diff --git a/Engine/engine/renderLoop.cpp b/Engine/engine/renderLoop.cpp
index 5ae41f2..61016fc 100644
--- a/Engine/engine/renderLoop.cpp
+++ b/Engine/engine/renderLoop.cpp
@@ -89,7 +89,7 @@ unsigned int generateBindVAO()
     return vertexArrayObject;
 }
 
-void copyVerticesArray(unsigned int vertexBufferObject, const float vertices[], const size_t sizeOfVertices, const GLenum boundBufferTarget)
+void copyVerticesArray(const unsigned int vertexBufferObject, const float vertices[], const size_t sizeOfVertices, const GLenum boundBufferTarget)
 {
     // copy vertices array in array useful for OGL
     glBindBuffer(boundBufferTarget, vertexBufferObject);
diff --git a/Engine/engine/shaders.cpp b/Engine/engine/shaders.cpp
index 47eddb4..ad1db86 100644
--- a/Engine/engine/shaders.cpp
+++ b/Engine/engine/shaders.cpp
@@ -6,13 +6,12 @@
 #include "constants.hpp"
 #include "misc.hpp"
 
-unsigned int linkShaderObjectsShaderProgram(unsigned int vertexShaders, unsigned int fragmentShader)
+unsigned int linkShaderObjectsShaderProgram(const unsigned int vertexShaders, const unsigned int fragmentShader)
 {
     // link shader objects into shader program
     // will store shader program id
-    unsigned int shaderProgram;
     // creates program
-    shaderProgram = glCreateProgram();
+    const unsigned int shaderProgram = glCreateProgram();
 
     // attachShaders
     glAttachShader(shaderProgram, vertexShaders);
diff --git a/Engine/engine/shaders.hpp b/Engine/engine/shaders.hpp
index 238fb31..7eee842 100644
--- a/Engine/engine/shaders.hpp
+++ b/Engine/engine/shaders.hpp
@@ -4,7 +4,7 @@
 #include <GLFW/glfw3.h>
 #include <iostream>
 
-unsigned int linkShaderObjectsShaderProgram(unsigned int vertexShaders, unsigned int fragmentShader);
+unsigned int linkShaderObjectsShaderProgram(const unsigned int vertexShaders, const unsigned int fragmentShader);
 std::pair<unsigned int, unsigned int> compileShaders();
 unsigned int compileShader(const GLenum shaderType, const char *shaderSource);
 int shaderCompilationSuccessful(const unsigned int shader);