diff --git a/src/Morpho.sol b/src/Morpho.sol
index d96cd9546..f19d3396e 100644
--- a/src/Morpho.sol
+++ b/src/Morpho.sol
@@ -13,6 +13,7 @@ import {IIrm} from "./interfaces/IIrm.sol";
 import {IERC20} from "./interfaces/IERC20.sol";
 import {IOracle} from "./interfaces/IOracle.sol";
 
+import "./libraries/ConstantsLib.sol";
 import {UtilsLib} from "./libraries/UtilsLib.sol";
 import {EventsLib} from "./libraries/EventsLib.sol";
 import {ErrorsLib} from "./libraries/ErrorsLib.sol";
@@ -21,20 +22,6 @@ import {MathLib, WAD} from "./libraries/MathLib.sol";
 import {SharesMathLib} from "./libraries/SharesMathLib.sol";
 import {SafeTransferLib} from "./libraries/SafeTransferLib.sol";
 
-/// @dev The maximum fee a market can have (25%).
-uint256 constant MAX_FEE = 0.25e18;
-/// @dev Oracle price scale.
-uint256 constant ORACLE_PRICE_SCALE = 1e36;
-/// @dev Liquidation cursor.
-uint256 constant LIQUIDATION_CURSOR = 0.3e18;
-/// @dev Max liquidation incentive factor.
-uint256 constant MAX_LIQUIDATION_INCENTIVE_FACTOR = 1.15e18;
-/// @dev The EIP-712 typeHash for EIP712Domain.
-bytes32 constant DOMAIN_TYPEHASH = keccak256("EIP712Domain(string name,uint256 chainId,address verifyingContract)");
-/// @dev The EIP-712 typeHash for Authorization.
-bytes32 constant AUTHORIZATION_TYPEHASH =
-    keccak256("Authorization(address authorizer,address authorized,bool isAuthorized,uint256 nonce,uint256 deadline)");
-
 /// @title Morpho
 /// @author Morpho Labs
 /// @custom:contact security@morpho.xyz
diff --git a/src/libraries/ConstantsLib.sol b/src/libraries/ConstantsLib.sol
new file mode 100644
index 000000000..f4719b9f3
--- /dev/null
+++ b/src/libraries/ConstantsLib.sol
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: UNLICENSED
+pragma solidity ^0.8.0;
+
+/// @dev The maximum fee a market can have (25%).
+uint256 constant MAX_FEE = 0.25e18;
+
+/// @dev Oracle price scale.
+uint256 constant ORACLE_PRICE_SCALE = 1e36;
+
+/// @dev Liquidation cursor.
+uint256 constant LIQUIDATION_CURSOR = 0.3e18;
+
+/// @dev Max liquidation incentive factor.
+uint256 constant MAX_LIQUIDATION_INCENTIVE_FACTOR = 1.15e18;
+
+/// @dev The EIP-712 typeHash for EIP712Domain.
+bytes32 constant DOMAIN_TYPEHASH = keccak256("EIP712Domain(string name,uint256 chainId,address verifyingContract)");
+
+/// @dev The EIP-712 typeHash for Authorization.
+bytes32 constant AUTHORIZATION_TYPEHASH =
+    keccak256("Authorization(address authorizer,address authorized,bool isAuthorized,uint256 nonce,uint256 deadline)");
diff --git a/test/forge/helpers/SigUtils.sol b/test/forge/helpers/SigUtils.sol
index b7972534f..ba73f8621 100644
--- a/test/forge/helpers/SigUtils.sol
+++ b/test/forge/helpers/SigUtils.sol
@@ -1,7 +1,9 @@
 // SPDX-License-Identifier: UNLICENSED
 pragma solidity ^0.8.0;
 
-import {Authorization, AUTHORIZATION_TYPEHASH} from "src/Morpho.sol";
+import {AUTHORIZATION_TYPEHASH} from "src/libraries/ConstantsLib.sol";
+
+import {Authorization} from "src/interfaces/IMorpho.sol";
 
 library SigUtils {
     /// @dev Computes the hash of the EIP-712 encoded data.