diff --git a/contracts/_PairwiseAlignment.sol b/contracts/_PairwiseAlignment.sol
index e649b22..2790e54 100644
--- a/contracts/_PairwiseAlignment.sol
+++ b/contracts/_PairwiseAlignment.sol
@@ -27,7 +27,7 @@
 pragma solidity ^0.8.17;
 import '../submodules/substitution-matrices/contracts/SubstitutionMatrices.sol';
 
-contract PairwiseAlignment is Owner {
+contract PairwiseAlignment is Ownable {
   SubstitutionMatrices public matricesContract;
   uint public defaultLimit = 25;
   uint public hardLimit = 1000;
diff --git a/submodules/substitution-matrices b/submodules/substitution-matrices
index 834d78e..307b517 160000
--- a/submodules/substitution-matrices
+++ b/submodules/substitution-matrices
@@ -1 +1 @@
-Subproject commit 834d78e8fe7ec3045a5992c37aa8f9cf607df840
+Subproject commit 307b5173d4b9b61730bfd28379c0dbbd19966fb2
diff --git a/submodules/zenode-contracts b/submodules/zenode-contracts
index 8ac279a..cc53759 160000
--- a/submodules/zenode-contracts
+++ b/submodules/zenode-contracts
@@ -1 +1 @@
-Subproject commit 8ac279a7fd8f87c9edac7ea49701b6abd5c1c64b
+Subproject commit cc5375901645a3688e350549678b717437b1a225