diff --git a/include/emulator.hpp b/include/emulator.hpp
index 590c267c..1dd9c9d9 100644
--- a/include/emulator.hpp
+++ b/include/emulator.hpp
@@ -39,7 +39,9 @@ public:
             Helpers::panic("Failed to initialize SDL2");
         }
 
-        // Request OpenGL 4.1 (Max available on MacOS)
+        // Request OpenGL 4.1 Core (Max available on MacOS)
+        // MacOS gets mad if we don't explicitly demand a core profile
+        SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
         SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 4);
         SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 1);
         window = SDL_CreateWindow("Alber", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, width, height, SDL_WINDOW_OPENGL);
diff --git a/src/core/renderer_gl/renderer_gl.cpp b/src/core/renderer_gl/renderer_gl.cpp
index cda309c8..fe83a104 100644
--- a/src/core/renderer_gl/renderer_gl.cpp
+++ b/src/core/renderer_gl/renderer_gl.cpp
@@ -8,7 +8,7 @@ using namespace Floats;
 // This is all hacked up to display our first triangle
 
 const char* vertexShader = R"(
-	#version 420 core
+	#version 410 core
 	
 	layout (location = 0) in vec4 coords;
 	layout (location = 1) in vec4 vertexColour;