Update docs for SafeERC20.forceApprove (#4231)

(cherry picked from commit 06861dc)
OpenZeppelin · Jul 1, 2023 · a54f639 · a54f639
1 parent e50c24f
commit a54f639
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/contracts/token/ERC20/utils/SafeERC20.sol b/contracts/token/ERC20/utils/SafeERC20.sol
@@ -76,8 +76,8 @@ library SafeERC20 {
 
  /**
  * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
- * non-reverting calls are assumed to be successful. Compatible with tokens that require the approval to be set to
- * 0 before setting it to a non-zero value.
+ * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
+ * to be set to zero before setting it to a non-zero value, such as USDT.
  */
  function forceApprove(IERC20 token, address spender, uint256 value) internal {
  bytes memory approvalCall = abi.encodeWithSelector(token.approve.selector, spender, value);