diff --git a/.gitmodules b/.gitmodules
deleted file mode 100644
index 44a5029..0000000
--- a/.gitmodules
+++ /dev/null
@@ -1,4 +0,0 @@
-[submodule "third_party/grpc-proto"]
-	path = third_party/grpc-proto
-	url = https://git.anthrove.art/Anthrove/grpc-proto.git
-	branch = release/v4.0.0