diff --git a/.gitmodules b/.gitmodules
index 7bca3b7..a0e2572 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -4,3 +4,6 @@
 [submodule "animation/Rerender_A_Video/deps/ebsynth"]
 	path = animation/Rerender_A_Video/deps/ebsynth
 	url = https://github.com/SingleZombie/ebsynth
+[submodule "animation/Rerender_A_Video/deps/gmflow"]
+	path = animation/Rerender_A_Video/deps/gmflow
+	url = https://github.com/haofeixu/gmflow