diff --git a/.gitmodules b/.gitmodules
index 83348900..f87c8984 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -13,3 +13,6 @@
 [submodule "lib/nomad-xyz/excessively-safe-call"]
 	path = lib/nomad-xyz/excessively-safe-call
 	url = https://github.com/nomad-xyz/ExcessivelySafeCall
+[submodule "lib/openzeppelin-contracts-upgradeable"]
+	path = lib/openzeppelin-contracts-upgradeable
+	url = https://github.com/openzeppelin/openzeppelin-contracts-upgradeable
diff --git a/lib/openzeppelin-contracts-upgradeable b/lib/openzeppelin-contracts-upgradeable
new file mode 160000
index 00000000..723f8cab
--- /dev/null
+++ b/lib/openzeppelin-contracts-upgradeable
@@ -0,0 +1 @@
+Subproject commit 723f8cab09cdae1aca9ec9cc1cfa040c2d4b06c1