From ed064d5c73af0944c088870d3b1a113025053bac Mon Sep 17 00:00:00 2001
From: Marcin Chrzanowski <martin@clabs.co>
Date: Fri, 20 Sep 2024 15:08:13 +0200
Subject: [PATCH] Use more general interface

---
 packages/protocol/contracts-0.8/common/EpochManager.sol | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/protocol/contracts-0.8/common/EpochManager.sol b/packages/protocol/contracts-0.8/common/EpochManager.sol
index f06273a273..aa6fa57f02 100644
--- a/packages/protocol/contracts-0.8/common/EpochManager.sol
+++ b/packages/protocol/contracts-0.8/common/EpochManager.sol
@@ -1,11 +1,11 @@
 // SPDX-License-Identifier: LGPL-3.0-only
 pragma solidity >=0.8.7 <0.8.20;
 
+import "@openzeppelin/contracts8/token/ERC20/IERC20.sol";
 import "@openzeppelin/contracts8/security/ReentrancyGuard.sol";
 import "@openzeppelin/contracts8/access/Ownable.sol";
 
 import "./interfaces/IOracle.sol";
-import "./interfaces/IStableToken.sol";
 import "../common/UsingRegistry.sol";
 
 import "../../contracts/common/FixidityLib.sol";
@@ -277,7 +277,7 @@ contract EpochManager is
       .fromFixed();
     uint256 validatorPayment = remainingPayment.fromFixed() - delegatedPayment;
 
-    IStableToken stableToken = IStableToken(getStableToken());
+    IERC20 stableToken = IERC20(getStableToken());
 
     if (validatorPayment > 0) {
       require(stableToken.transfer(validator, validatorPayment), "transfer failed to validator");