diff --git a/.gitmodules b/.gitmodules
index 3a079448b1..65787f6699 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,10 +1,6 @@
 [submodule "spec_testsuite"]
 	path = spec_testsuite
 	url = https://github.com/WebAssembly/testsuite
-[submodule "lightbeam"]
-	path = lightbeam
-	url = https://github.com/CraneStation/lightbeam.git
-	branch = master
 [submodule "wasmtime-api/c-examples/wasm-c-api"]
 	path = wasmtime-api/c-examples/wasm-c-api
 	url = https://github.com/WebAssembly/wasm-c-api
diff --git a/lightbeam b/lightbeam
deleted file mode 160000
index bbd7e91d1c..0000000000
--- a/lightbeam
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit bbd7e91d1c524b7d7f5b88c4e89cffe03c70b3ef