diff --git a/.gitmodules b/.gitmodules
index 83769d0..5fa763b 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -7,3 +7,6 @@
 [submodule "projects/xmint/chains/evm/lib/openzeppelin-contracts"]
 	path = projects/xmint/chains/evm/lib/openzeppelin-contracts
 	url = https://github.com/OpenZeppelin/openzeppelin-contracts
+[submodule "projects/xmint/chains/evm/lib/solidity-bytes-utils"]
+	path = projects/xmint/chains/evm/lib/solidity-bytes-utils
+	url = https://github.com/GNSPS/solidity-bytes-utils
diff --git a/projects/xmint/chains/evm/lib/solidity-bytes-utils b/projects/xmint/chains/evm/lib/solidity-bytes-utils
new file mode 160000
index 0000000..6458fb2
--- /dev/null
+++ b/projects/xmint/chains/evm/lib/solidity-bytes-utils
@@ -0,0 +1 @@
+Subproject commit 6458fb2780a3092bc756e737f246be1de6d3d362