diff --git a/.gitmodules b/.gitmodules
index 77c7c59..3ae55c3 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -10,3 +10,6 @@
 [submodule "onchain/lib/v3-core"]
 	path = onchain/lib/v3-core
 	url = https://github.com/Uniswap/v3-core
+[submodule "onchain/lib/v3-periphery"]
+	path = onchain/lib/v3-periphery
+	url = https://github.com/Uniswap/v3-periphery
diff --git a/onchain/lib/v3-periphery b/onchain/lib/v3-periphery
new file mode 160000
index 0000000..80f26c8
--- /dev/null
+++ b/onchain/lib/v3-periphery
@@ -0,0 +1 @@
+Subproject commit 80f26c86c57b8a5e4b913f42844d4c8bd274d058