diff --git a/contracts/interfaces/IERC1155MetadataURI.sol b/contracts/interfaces/IERC1155MetadataURI.sol
deleted file mode 100644
index fec5136..0000000
--- a/contracts/interfaces/IERC1155MetadataURI.sol
+++ /dev/null
@@ -1,21 +0,0 @@
-// SPDX-License-Identifier: MIT
-
-pragma solidity ^0.8.0;
-
-import "@openzeppelin-contracts/contracts/token/ERC1155/IERC1155.sol";
-
-/**
- * @dev Interface of the optional ERC1155MetadataExtension interface, as defined
- * in the https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[EIP].
- *
- * _Available since v3.1._
- */
-interface IERC1155MetadataURI is IERC1155 {
-    /**
-     * @dev Returns the URI for token type `id`.
-     *
-     * If the `\{id\}` substring is present in the URI, it must be replaced by
-     * clients with the actual token type ID.
-     */
-    function uri(uint256 id) external view returns (string memory);
-}
diff --git a/contracts/interfaces/IERC1155WithTerminusStorage.sol b/contracts/interfaces/IERC1155WithTerminusStorage.sol
index e7030a6..523074e 100644
--- a/contracts/interfaces/IERC1155WithTerminusStorage.sol
+++ b/contracts/interfaces/IERC1155WithTerminusStorage.sol
@@ -2,7 +2,7 @@
 
 pragma solidity ^0.8.0;
 
-import "./IERC1155MetadataURI.sol";
+import "@openzeppelin-contracts/contracts/token/ERC1155/extensions/IERC1155MetadataURI.sol";
 
 interface IERC1155WithTerminusStorage is IERC1155, IERC1155MetadataURI {
     function isApprovedForPool(uint256 poolID, address operator)