diff --git a/.gitmodules b/.gitmodules
index 4c1b977a..0db309a9 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,6 @@
 [submodule "lib/forge-std"]
 	path = lib/forge-std
-	url = https://github.com/foundry-rs/forge-std
\ No newline at end of file
+	url = https://github.com/foundry-rs/forge-std
+[submodule "lib/sphinx"]
+	path = lib/sphinx
+	url = https://github.com/sphinx-labs/sphinx
\ No newline at end of file