diff --git a/.gitmodules b/.gitmodules
index c6997b2..56bfede 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -7,3 +7,6 @@
 [submodule "lib/openzeppelin-foundry-upgrades"]
 	path = lib/openzeppelin-foundry-upgrades
 	url = https://github.com/OpenZeppelin/openzeppelin-foundry-upgrades
+[submodule "lib/openzeppelin-contracts-upgradeable"]
+	path = lib/openzeppelin-contracts-upgradeable
+	url = https://github.com/OpenZeppelin/openzeppelin-contracts-upgradeable