diff --git a/README.md b/README.md
index b8fa221..37fbac9 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ The dependencies are:
 
 Other than those, rntviewer depends on Dear ImGui and GLAD (both included in the source tree).
 
-The machine must support OpenGL 4.
+The machine must support OpenGL 3.3 or higher.
 
 ### Building
 Building is done with `make`. Make sure to `source /path/to/root/bin/thisroot.sh` before running it.
diff --git a/src/mainloop.cpp b/src/mainloop.cpp
index 14e2b6b..61ab6b0 100644
--- a/src/mainloop.cpp
+++ b/src/mainloop.cpp
@@ -25,8 +25,8 @@ GLFWwindow *init_glfw(i32 desired_win_width, i32 desired_win_height)
 {
 	glfwSetErrorCallback(glfw_error_callback);
 	glfwInit();
-	glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
-	// glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
+	glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
+	glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
 	glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
 	glfwWindowHint(GLFW_DOUBLEBUFFER, GLFW_TRUE);
 	glfwWindowHint(GLFW_RESIZABLE, GLFW_TRUE);