diff --git a/src/ComposedOracle.sol b/src/ComposedOracle.sol
index 099b2f7..2cfbf66 100644
--- a/src/ComposedOracle.sol
+++ b/src/ComposedOracle.sol
@@ -1,4 +1,5 @@
-// SPDX-License-Identifier: MIT
+// SPDX-License-Identifier: UNLICENSED
+// Licensing information: https://github.com/StabilityNexus/OrbOracle-Solidity
 pragma solidity ^0.8.20;
 
 // interface for parent feeds
diff --git a/src/ComposedOracleFactory.sol b/src/ComposedOracleFactory.sol
index 5462af7..87b9c09 100644
--- a/src/ComposedOracleFactory.sol
+++ b/src/ComposedOracleFactory.sol
@@ -1,4 +1,5 @@
-// SPDX-License-Identifier: MIT
+// SPDX-License-Identifier: UNLICENSED
+// Licensing information: https://github.com/StabilityNexus/OrbOracle-Solidity
 pragma solidity ^0.8.20;
 
 import {Ownable} from "lib/openzeppelin-contracts/contracts/access/Ownable.sol";
diff --git a/src/DecayLib.sol b/src/DecayLib.sol
index 8806422..8283baa 100644
--- a/src/DecayLib.sol
+++ b/src/DecayLib.sol
@@ -1,4 +1,5 @@
-// SPDX-License-Identifier: MIT
+// SPDX-License-Identifier: UNLICENSED
+// Licensing information: https://github.com/StabilityNexus/OrbOracle-Solidity
 pragma solidity ^0.8.20;
 
 /**
diff --git a/src/GovernanceLib.sol b/src/GovernanceLib.sol
index bf613e9..3f9abd2 100644
--- a/src/GovernanceLib.sol
+++ b/src/GovernanceLib.sol
@@ -1,4 +1,5 @@
-// SPDX-License-Identifier: MIT
+// SPDX-License-Identifier: UNLICENSED
+// Licensing information: https://github.com/StabilityNexus/OrbOracle-Solidity
 pragma solidity ^0.8.20;
 
 uint256 constant DENOMINATOR = 1e5;
diff --git a/src/Oracle.sol b/src/Oracle.sol
index 94c0cd9..bb41470 100644
--- a/src/Oracle.sol
+++ b/src/Oracle.sol
@@ -1,4 +1,5 @@
-// SPDX-License-Identifier: MIT
+// SPDX-License-Identifier: UNLICENSED
+// Licensing information: https://github.com/StabilityNexus/OrbOracle-Solidity
 pragma solidity ^0.8.20;
 
 import {IERC20} from "lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol";
diff --git a/src/OracleFactory.sol b/src/OracleFactory.sol
index 96ab263..7bf196d 100644
--- a/src/OracleFactory.sol
+++ b/src/OracleFactory.sol
@@ -1,4 +1,5 @@
-// SPDX-License-Identifier: MIT
+// SPDX-License-Identifier: UNLICENSED
+// Licensing information: https://github.com/StabilityNexus/OrbOracle-Solidity
 pragma solidity ^0.8.20;
 
 import {Ownable} from "lib/openzeppelin-contracts/contracts/access/Ownable.sol";