diff --git a/src/contracts/instances/ATokenInstance.sol b/src/contracts/instances/ATokenInstance.sol
index 8e646385..ab8dee10 100644
--- a/src/contracts/instances/ATokenInstance.sol
+++ b/src/contracts/instances/ATokenInstance.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MIT
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import {AToken, IPool, IAaveIncentivesController, IInitializableAToken, Errors, VersionedInitializable} from '../protocol/tokenization/AToken.sol';
diff --git a/src/contracts/instances/L2PoolInstance.sol b/src/contracts/instances/L2PoolInstance.sol
index 0c61f19e..f323d4bd 100644
--- a/src/contracts/instances/L2PoolInstance.sol
+++ b/src/contracts/instances/L2PoolInstance.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MIT
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import {L2Pool} from '../protocol/pool/L2Pool.sol';
diff --git a/src/contracts/instances/PoolConfiguratorInstance.sol b/src/contracts/instances/PoolConfiguratorInstance.sol
index 7f7294fe..8d2e4939 100644
--- a/src/contracts/instances/PoolConfiguratorInstance.sol
+++ b/src/contracts/instances/PoolConfiguratorInstance.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MIT
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import {PoolConfigurator, IPoolAddressesProvider, IPool, VersionedInitializable} from '../protocol/pool/PoolConfigurator.sol';
diff --git a/src/contracts/instances/PoolInstance.sol b/src/contracts/instances/PoolInstance.sol
index b032e63e..4b1596d8 100644
--- a/src/contracts/instances/PoolInstance.sol
+++ b/src/contracts/instances/PoolInstance.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MIT
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import {Pool} from '../protocol/pool/Pool.sol';
diff --git a/src/contracts/instances/VariableDebtTokenInstance.sol b/src/contracts/instances/VariableDebtTokenInstance.sol
index b2c3dc89..eeb2f71a 100644
--- a/src/contracts/instances/VariableDebtTokenInstance.sol
+++ b/src/contracts/instances/VariableDebtTokenInstance.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MIT
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import {VariableDebtToken, IPool, IInitializableDebtToken, VersionedInitializable, IAaveIncentivesController, Errors} from '../protocol/tokenization/VariableDebtToken.sol';