diff --git a/.gitmodules b/.gitmodules
index a08516af98..1f9575f6a1 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,6 +1,3 @@
-[submodule "third_party/flatbuffers"]
-	path = third_party/flatbuffers
-	url = https://github.com/google/flatbuffers.git
 [submodule "third_party/UHDM"]
 	path = third_party/UHDM
 	url = https://github.com/chipsalliance/UHDM.git
diff --git a/third_party/flatbuffers b/third_party/flatbuffers
deleted file mode 160000
index 48da238920..0000000000
--- a/third_party/flatbuffers
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 48da2389205ca5fbd0d1f40ad52d9c0b8685a076