diff --git a/include/zelda_render.h b/include/zelda_render.h
index 91820b2..0143471 100644
--- a/include/zelda_render.h
+++ b/include/zelda_render.h
@@ -14,7 +14,7 @@ namespace RT64 {
 
 namespace zelda64 {
     namespace renderer {
-        class RT64Context : public ultramodern::renderer::RendererContext {
+        class RT64Context final : public ultramodern::renderer::RendererContext {
         public:
             ~RT64Context() override;
             RT64Context(uint8_t *rdram, ultramodern::renderer::WindowHandle window_handle, bool developer_mode);
diff --git a/lib/rt64 b/lib/rt64
index c7e270c..67422c3 160000
--- a/lib/rt64
+++ b/lib/rt64
@@ -1 +1 @@
-Subproject commit c7e270cf1588b7bbf73913d542ca5d40ee2728a2
+Subproject commit 67422c3b647058d3d38f2813a2abe79cf1638f13