diff --git a/.gitmodules b/.gitmodules
index 61068eda..c3d4d7c8 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -13,3 +13,6 @@
 [submodule "manul/thirdparty/entt"]
 	path = manul/thirdparty/entt
 	url = https://github.com/skypjack/entt.git
+[submodule "ref/glfw"]
+	path = ref/glfw
+	url = https://github.com/glfw/glfw
diff --git a/ref/glfw b/ref/glfw
new file mode 160000
index 00000000..7b6aead9
--- /dev/null
+++ b/ref/glfw
@@ -0,0 +1 @@
+Subproject commit 7b6aead9fb88b3623e3b3725ebb42670cbe4c579