diff --git a/README.md b/README.md
index 2862dfd6..729e1716 100644
--- a/README.md
+++ b/README.md
@@ -118,8 +118,9 @@ New V5 `SupplyController` (increased cap to account for the governance-induced b
 New V5 `SupplyController` (increase cap again to account for governance-induced burn):
 * Mainnet: https://etherscan.io/address/0xD4628FA47AAe2d0f4c8a204f36c2d93AA8dc31F5 
 
-New V5 `SupplyController` (increase cap again to account for governance-induced burn and discount treasury tokens):
+New V5 `SupplyController` (increase cap again to account for governance-induced burn by discounting treasury tokens):
 * Mainnet: https://etherscan.io/address/0x9B370599B2bf61806DDca1379257F26377472BEe
+* Was later updated by setting the incentive rate on 05 Feb 2024 following another halving governance vote
 
 StakingPool:
 
diff --git a/contracts/OUTPACE.sol b/contracts/OUTPACE.sol
index a2f41e77..e52753c7 100644
--- a/contracts/OUTPACE.sol
+++ b/contracts/OUTPACE.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: agpl-3.0
-pragma solidity 0.8.7;
+pragma solidity 0.8.19;
 
 import "./libs/SafeERC20.sol";
 import "./libs/MerkleProof.sol";
@@ -88,7 +88,7 @@ contract OUTPACE {
 		if (challengeExpirationTime != 0) lastStateRoot[channelId] = withdrawal.stateRoot;
 
 		// Check the signatures
-		bytes32 hashToSign = keccak256(abi.encode(address(this), channelId, withdrawal.stateRoot));
+		bytes32 hashToSign = keccak256(abi.encode(address(this), channelId, withdrawal.stateRoot, block.chainid));
 		require(SignatureValidator.isValid(hashToSign, withdrawal.channel.leader, withdrawal.sigLeader), 'LEADER_SIG');
 		require(SignatureValidator.isValid(hashToSign, withdrawal.channel.follower, withdrawal.sigFollower), 'FOLLOWER_SIG');
 		// adds like 8k gas for 10 withdrawals (2% increase)
@@ -128,7 +128,7 @@ contract OUTPACE {
 		uint challengeExpires = challenges[channelId];
 		require(challengeExpires != 0 && challengeExpires != CLOSED, 'CHANNEL_NOT_CHALLENGED');
 		// NOTE: we can resume the channel by mutual consent even if it's closable, so we won't check whether challengeExpires is in the future
-		bytes32 hashToSign = keccak256(abi.encodePacked('resume', channelId, challengeExpires));
+		bytes32 hashToSign = keccak256(abi.encodePacked('resume', channelId, challengeExpires, block.chainid));
 		require(SignatureValidator.isValid(hashToSign, channel.leader, sigLeader), 'INVALID_LEADER_SIG');
 		require(SignatureValidator.isValid(hashToSign, channel.follower, sigFollower), 'INVALID_FOLLOWER_SIG');
 
diff --git a/contracts/libs/BytesLib.sol b/contracts/libs/BytesLib.sol
index ad4073af..6072822b 100644
--- a/contracts/libs/BytesLib.sol
+++ b/contracts/libs/BytesLib.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: agpl-3.0
-pragma solidity 0.8.7;
+pragma solidity 0.8.19;
 
 // @TODO: Formatting
 library LibBytes {
diff --git a/contracts/libs/MerkleProof.sol b/contracts/libs/MerkleProof.sol
index 174ed51f..0887750a 100644
--- a/contracts/libs/MerkleProof.sol
+++ b/contracts/libs/MerkleProof.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: agpl-3.0
-pragma solidity 0.8.7;
+pragma solidity 0.8.19;
 
 library MerkleProof {
 	function isContained(bytes32 valueHash, bytes32[] memory proof, bytes32 root) internal pure returns (bool) {
diff --git a/contracts/libs/SafeERC20.sol b/contracts/libs/SafeERC20.sol
index 79907de6..bed0ce5b 100644
--- a/contracts/libs/SafeERC20.sol
+++ b/contracts/libs/SafeERC20.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: agpl-3.0
-pragma solidity 0.8.7;
+pragma solidity 0.8.19;
 
 // NOTE: this interface lacks return values for transfer/transferFrom/approve on purpose,
 // as we use the SafeERC20 library to check the return value
diff --git a/contracts/libs/SignatureValidator.sol b/contracts/libs/SignatureValidator.sol
index 44992267..5444d5aa 100644
--- a/contracts/libs/SignatureValidator.sol
+++ b/contracts/libs/SignatureValidator.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: agpl-3.0
-pragma solidity 0.8.7;
+pragma solidity 0.8.19;
 
 library SignatureValidator {
 	enum SignatureMode {
diff --git a/contracts/libs/SignatureValidatorV2.sol b/contracts/libs/SignatureValidatorV2.sol
index 9c481394..80438c8d 100644
--- a/contracts/libs/SignatureValidatorV2.sol
+++ b/contracts/libs/SignatureValidatorV2.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: agpl-3.0
-pragma solidity 0.8.7;
+pragma solidity 0.8.19;
 
 import "./BytesLib.sol";