diff --git a/.gitmodules b/.gitmodules
index 8764e09..1a2f8e4 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -16,3 +16,6 @@
 [submodule "onchain/lib/abdk-libraries-solidity"]
 	path = onchain/lib/abdk-libraries-solidity
 	url = https://github.com/abdk-consulting/abdk-libraries-solidity
+[submodule "onchain/lib/v3-core"]
+	path = onchain/lib/v3-core
+	url = https://github.com/Uniswap/v3-core
diff --git a/onchain/lib/v3-core b/onchain/lib/v3-core
new file mode 160000
index 0000000..e3589b1
--- /dev/null
+++ b/onchain/lib/v3-core
@@ -0,0 +1 @@
+Subproject commit e3589b192d0be27e100cd0daaf6c97204fdb1899