diff --git a/src/interfaces/IBaseController.sol b/src/interfaces/IBaseController.sol
index c9b524d..8137608 100644
--- a/src/interfaces/IBaseController.sol
+++ b/src/interfaces/IBaseController.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: BUSL-1.1
+// SPDX-License-Identifier: MIT
 pragma solidity 0.8.17;
 
 interface IBaseController {
diff --git a/src/interfaces/IBaseOracleAdapter.sol b/src/interfaces/IBaseOracleAdapter.sol
index 16c597d..0552fd0 100644
--- a/src/interfaces/IBaseOracleAdapter.sol
+++ b/src/interfaces/IBaseOracleAdapter.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: BUSL-1.1
+// SPDX-License-Identifier: MIT
 pragma solidity 0.8.17;
 
 interface IBaseOracleAdapter {
diff --git a/src/interfaces/IOval.sol b/src/interfaces/IOval.sol
index ba864ef..548120d 100644
--- a/src/interfaces/IOval.sol
+++ b/src/interfaces/IOval.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: BUSL-1.1
+// SPDX-License-Identifier: MIT
 pragma solidity 0.8.17;
 
 interface IOval {
diff --git a/src/interfaces/chainlink/IAccessControlledAggregatorV3.sol b/src/interfaces/chainlink/IAccessControlledAggregatorV3.sol
index 2f9fc01..3579719 100644
--- a/src/interfaces/chainlink/IAccessControlledAggregatorV3.sol
+++ b/src/interfaces/chainlink/IAccessControlledAggregatorV3.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: BUSL-1.1
+// SPDX-License-Identifier: MIT
 pragma solidity 0.8.17;
 
 import {IAggregatorV3} from "./IAggregatorV3.sol";
diff --git a/src/interfaces/chainlink/IAggregatorV3.sol b/src/interfaces/chainlink/IAggregatorV3.sol
index ba4a500..5bb8be5 100644
--- a/src/interfaces/chainlink/IAggregatorV3.sol
+++ b/src/interfaces/chainlink/IAggregatorV3.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: BUSL-1.1
+// SPDX-License-Identifier: MIT
 pragma solidity 0.8.17;
 
 interface IAggregatorV3 {
diff --git a/src/interfaces/chainlink/IAggregatorV3Source.sol b/src/interfaces/chainlink/IAggregatorV3Source.sol
index 0d08e73..3a6a2df 100644
--- a/src/interfaces/chainlink/IAggregatorV3Source.sol
+++ b/src/interfaces/chainlink/IAggregatorV3Source.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: BUSL-1.1
+// SPDX-License-Identifier: MIT
 pragma solidity 0.8.17;
 
 interface IAggregatorV3Source {
diff --git a/src/interfaces/compound/ICToken.sol b/src/interfaces/compound/ICToken.sol
index 2a57807..cef6bff 100644
--- a/src/interfaces/compound/ICToken.sol
+++ b/src/interfaces/compound/ICToken.sol
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: MIT
 pragma solidity 0.8.17;
 
 import {IERC20} from "openzeppelin-contracts/contracts/interfaces/IERC20.sol";
diff --git a/src/interfaces/compound/IUniswapAnchoredView.sol b/src/interfaces/compound/IUniswapAnchoredView.sol
index 3b48122..966eba7 100644
--- a/src/interfaces/compound/IUniswapAnchoredView.sol
+++ b/src/interfaces/compound/IUniswapAnchoredView.sol
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: MIT
 pragma solidity 0.8.17;
 
 interface IUniswapAnchoredView {
diff --git a/src/interfaces/compound/IValidatorProxy.sol b/src/interfaces/compound/IValidatorProxy.sol
index cb84576..becb417 100644
--- a/src/interfaces/compound/IValidatorProxy.sol
+++ b/src/interfaces/compound/IValidatorProxy.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: BUSL-1.1
+// SPDX-License-Identifier: MIT
 pragma solidity 0.8.17;
 
 interface IValidatorProxy {