diff --git a/v2/scripts/localnet/EvmCall.s.sol b/v2/scripts/localnet/EvmCall.s.sol
index c8b142be..85a4fb70 100644
--- a/v2/scripts/localnet/EvmCall.s.sol
+++ b/v2/scripts/localnet/EvmCall.s.sol
@@ -1,5 +1,5 @@
-// SPDX-License-Identifier: UNLICENSED
-pragma solidity ^0.8.20;
+// SPDX-License-Identifier: MIT
+pragma solidity 0.8.26;
 
 import "forge-std/Script.sol";
 import "src/evm/GatewayEVM.sol";
diff --git a/v2/scripts/localnet/EvmDepositAndCall.s.sol b/v2/scripts/localnet/EvmDepositAndCall.s.sol
index 284b010e..e44c3e88 100644
--- a/v2/scripts/localnet/EvmDepositAndCall.s.sol
+++ b/v2/scripts/localnet/EvmDepositAndCall.s.sol
@@ -1,5 +1,5 @@
-// SPDX-License-Identifier: UNLICENSED
-pragma solidity ^0.8.20;
+// SPDX-License-Identifier: MIT
+pragma solidity 0.8.26;
 
 import "forge-std/Script.sol";
 import "src/evm/GatewayEVM.sol";
diff --git a/v2/scripts/localnet/ZevmCall.s.sol b/v2/scripts/localnet/ZevmCall.s.sol
index 544b90d6..f787f0b9 100644
--- a/v2/scripts/localnet/ZevmCall.s.sol
+++ b/v2/scripts/localnet/ZevmCall.s.sol
@@ -1,5 +1,5 @@
-// SPDX-License-Identifier: UNLICENSED
-pragma solidity ^0.8.20;
+// SPDX-License-Identifier: MIT
+pragma solidity 0.8.26;
 
 import "forge-std/Script.sol";
 import "src/zevm/GatewayZEVM.sol";
diff --git a/v2/scripts/localnet/ZevmWithdrawAndCall.s.sol b/v2/scripts/localnet/ZevmWithdrawAndCall.s.sol
index 2cec8a66..2db54f6d 100644
--- a/v2/scripts/localnet/ZevmWithdrawAndCall.s.sol
+++ b/v2/scripts/localnet/ZevmWithdrawAndCall.s.sol
@@ -1,5 +1,5 @@
-// SPDX-License-Identifier: UNLICENSED
-pragma solidity ^0.8.20;
+// SPDX-License-Identifier: MIT
+pragma solidity 0.8.26;
 
 import "forge-std/Script.sol";
 import "src/zevm/GatewayZEVM.sol";
diff --git a/v2/src/evm/ERC20CustodyNew.sol b/v2/src/evm/ERC20CustodyNew.sol
index 963afa3d..66580925 100644
--- a/v2/src/evm/ERC20CustodyNew.sol
+++ b/v2/src/evm/ERC20CustodyNew.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.20;
+pragma solidity 0.8.26;
 
 import "./interfaces//IGatewayEVM.sol";
 import "./interfaces/IERC20CustodyNew.sol";
diff --git a/v2/src/evm/GatewayEVM.sol b/v2/src/evm/GatewayEVM.sol
index e69abb1b..b064154f 100644
--- a/v2/src/evm/GatewayEVM.sol
+++ b/v2/src/evm/GatewayEVM.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.20;
+pragma solidity 0.8.26;
 
 import "./ZetaConnectorNewBase.sol";
 import "./interfaces/IGatewayEVM.sol";
diff --git a/v2/src/evm/ZetaConnectorNative.sol b/v2/src/evm/ZetaConnectorNative.sol
index 860c4f6d..38291ba1 100644
--- a/v2/src/evm/ZetaConnectorNative.sol
+++ b/v2/src/evm/ZetaConnectorNative.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.20;
+pragma solidity 0.8.26;
 
 import "./ZetaConnectorNewBase.sol";
 import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
diff --git a/v2/src/evm/ZetaConnectorNewBase.sol b/v2/src/evm/ZetaConnectorNewBase.sol
index 7295ecde..62be9d83 100644
--- a/v2/src/evm/ZetaConnectorNewBase.sol
+++ b/v2/src/evm/ZetaConnectorNewBase.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.20;
+pragma solidity 0.8.26;
 
 import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
 import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
diff --git a/v2/src/evm/ZetaConnectorNonNative.sol b/v2/src/evm/ZetaConnectorNonNative.sol
index a9870e18..b16544d1 100644
--- a/v2/src/evm/ZetaConnectorNonNative.sol
+++ b/v2/src/evm/ZetaConnectorNonNative.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.20;
+pragma solidity 0.8.26;
 
 import "./ZetaConnectorNewBase.sol";
 import "./interfaces/IZetaNonEthNew.sol";
diff --git a/v2/src/evm/interfaces/IERC20CustodyNew.sol b/v2/src/evm/interfaces/IERC20CustodyNew.sol
index e4015f98..27978071 100644
--- a/v2/src/evm/interfaces/IERC20CustodyNew.sol
+++ b/v2/src/evm/interfaces/IERC20CustodyNew.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.20;
+pragma solidity 0.8.26;
 
 /// @title IERC20CustodyNewEvents
 /// @notice Interface for the events emitted by the ERC20 custody contract.
diff --git a/v2/src/evm/interfaces/IGatewayEVM.sol b/v2/src/evm/interfaces/IGatewayEVM.sol
index 424dbba7..75c41562 100644
--- a/v2/src/evm/interfaces/IGatewayEVM.sol
+++ b/v2/src/evm/interfaces/IGatewayEVM.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.20;
+pragma solidity 0.8.26;
 
 /// @title IGatewayEVMEvents
 /// @notice Interface for the events emitted by the GatewayEVM contract.
diff --git a/v2/src/evm/interfaces/IZetaConnector.sol b/v2/src/evm/interfaces/IZetaConnector.sol
index b53a1eb7..0e7794df 100644
--- a/v2/src/evm/interfaces/IZetaConnector.sol
+++ b/v2/src/evm/interfaces/IZetaConnector.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.20;
+pragma solidity 0.8.26;
 
 /// @title IZetaConnectorEvents
 /// @notice Interface for the events emitted by the ZetaConnector contracts.
diff --git a/v2/src/evm/interfaces/IZetaNonEthNew.sol b/v2/src/evm/interfaces/IZetaNonEthNew.sol
index 094debdf..11b9ee3c 100644
--- a/v2/src/evm/interfaces/IZetaNonEthNew.sol
+++ b/v2/src/evm/interfaces/IZetaNonEthNew.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.20;
+pragma solidity 0.8.26;
 
 import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
 
diff --git a/v2/src/zevm/GatewayZEVM.sol b/v2/src/zevm/GatewayZEVM.sol
index 426475d8..834d4743 100644
--- a/v2/src/zevm/GatewayZEVM.sol
+++ b/v2/src/zevm/GatewayZEVM.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.20;
+pragma solidity 0.8.26;
 
 import "./interfaces/IGatewayZEVM.sol";
 import "./interfaces/IWZETA.sol";
diff --git a/v2/src/zevm/interfaces/IGatewayZEVM.sol b/v2/src/zevm/interfaces/IGatewayZEVM.sol
index 2b9a7ff6..307c07a2 100644
--- a/v2/src/zevm/interfaces/IGatewayZEVM.sol
+++ b/v2/src/zevm/interfaces/IGatewayZEVM.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.20;
+pragma solidity 0.8.26;
 
 import "./zContract.sol";
 
diff --git a/v2/src/zevm/interfaces/ISystem.sol b/v2/src/zevm/interfaces/ISystem.sol
index 6a9e4585..c91f2b4c 100644
--- a/v2/src/zevm/interfaces/ISystem.sol
+++ b/v2/src/zevm/interfaces/ISystem.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.20;
+pragma solidity 0.8.26;
 
 /// @title ISystem
 /// @notice Interface for the System contract.
diff --git a/v2/src/zevm/interfaces/IWZETA.sol b/v2/src/zevm/interfaces/IWZETA.sol
index 5c5c4b73..1e0ada56 100644
--- a/v2/src/zevm/interfaces/IWZETA.sol
+++ b/v2/src/zevm/interfaces/IWZETA.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.20;
+pragma solidity 0.8.26;
 
 /// @title IWETH9
 /// @notice Interface for the Weth9 contract.
diff --git a/v2/src/zevm/interfaces/IZRC20.sol b/v2/src/zevm/interfaces/IZRC20.sol
index bb383621..8987c6ea 100644
--- a/v2/src/zevm/interfaces/IZRC20.sol
+++ b/v2/src/zevm/interfaces/IZRC20.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.20;
+pragma solidity 0.8.26;
 
 /// @title IZRC20
 /// @notice Interface for the ZRC20 token contract.
diff --git a/v2/src/zevm/interfaces/zContract.sol b/v2/src/zevm/interfaces/zContract.sol
index 4470994f..45013a93 100644
--- a/v2/src/zevm/interfaces/zContract.sol
+++ b/v2/src/zevm/interfaces/zContract.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.20;
+pragma solidity 0.8.26;
 
 struct zContext {
     bytes origin;
diff --git a/v2/test/GatewayEVM.t.sol b/v2/test/GatewayEVM.t.sol
index b1b6c5c0..b18bc34a 100644
--- a/v2/test/GatewayEVM.t.sol
+++ b/v2/test/GatewayEVM.t.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.20;
+pragma solidity 0.8.26;
 
 import "forge-std/Test.sol";
 import "forge-std/Vm.sol";
diff --git a/v2/test/GatewayEVMUpgrade.t.sol b/v2/test/GatewayEVMUpgrade.t.sol
index c9581dc6..bc447638 100644
--- a/v2/test/GatewayEVMUpgrade.t.sol
+++ b/v2/test/GatewayEVMUpgrade.t.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.20;
+pragma solidity 0.8.26;
 
 import "forge-std/Test.sol";
 import "forge-std/Vm.sol";
diff --git a/v2/test/GatewayEVMZEVM.t.sol b/v2/test/GatewayEVMZEVM.t.sol
index cb62da47..4a9b84c6 100644
--- a/v2/test/GatewayEVMZEVM.t.sol
+++ b/v2/test/GatewayEVMZEVM.t.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.20;
+pragma solidity 0.8.26;
 
 import "forge-std/Test.sol";
 import "forge-std/Vm.sol";
diff --git a/v2/test/GatewayZEVM.t.sol b/v2/test/GatewayZEVM.t.sol
index a19e0546..f6132b90 100644
--- a/v2/test/GatewayZEVM.t.sol
+++ b/v2/test/GatewayZEVM.t.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.0;
+pragma solidity 0.8.26;
 
 import "forge-std/Test.sol";
 import "forge-std/Vm.sol";
diff --git a/v2/test/ZetaConnectorNative.t.sol b/v2/test/ZetaConnectorNative.t.sol
index 9960da26..f03e4a81 100644
--- a/v2/test/ZetaConnectorNative.t.sol
+++ b/v2/test/ZetaConnectorNative.t.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.0;
+pragma solidity 0.8.26;
 
 import "forge-std/Test.sol";
 import "forge-std/Vm.sol";
diff --git a/v2/test/ZetaConnectorNonNative.t.sol b/v2/test/ZetaConnectorNonNative.t.sol
index 5aac070a..bc993b2d 100644
--- a/v2/test/ZetaConnectorNonNative.t.sol
+++ b/v2/test/ZetaConnectorNonNative.t.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.20;
+pragma solidity 0.8.26;
 
 import "forge-std/Test.sol";
 import "forge-std/Vm.sol";
diff --git a/v2/test/fuzz/ERC20CustodyNewEchidnaTest.sol b/v2/test/fuzz/ERC20CustodyNewEchidnaTest.sol
index f0d8b686..f44728ee 100644
--- a/v2/test/fuzz/ERC20CustodyNewEchidnaTest.sol
+++ b/v2/test/fuzz/ERC20CustodyNewEchidnaTest.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.20;
+pragma solidity 0.8.26;
 
 import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
 import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
diff --git a/v2/test/fuzz/GatewayEVMEchidnaTest.sol b/v2/test/fuzz/GatewayEVMEchidnaTest.sol
index 684c4d21..3cc8e56b 100644
--- a/v2/test/fuzz/GatewayEVMEchidnaTest.sol
+++ b/v2/test/fuzz/GatewayEVMEchidnaTest.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.20;
+pragma solidity 0.8.26;
 
 import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
 import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
diff --git a/v2/test/utils/GatewayEVMUpgradeTest.sol b/v2/test/utils/GatewayEVMUpgradeTest.sol
index 7e910379..a56b941a 100644
--- a/v2/test/utils/GatewayEVMUpgradeTest.sol
+++ b/v2/test/utils/GatewayEVMUpgradeTest.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.20;
+pragma solidity 0.8.26;
 
 import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
 import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
diff --git a/v2/test/utils/IReceiverEVM.sol b/v2/test/utils/IReceiverEVM.sol
index 3d053d5e..3ed300f8 100644
--- a/v2/test/utils/IReceiverEVM.sol
+++ b/v2/test/utils/IReceiverEVM.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.20;
+pragma solidity 0.8.26;
 
 /// @title IReceiverEVMEvents
 /// @notice Interface for the events emitted by the ReceiverEVM contract.
diff --git a/v2/test/utils/ReceiverEVM.sol b/v2/test/utils/ReceiverEVM.sol
index a0d49a4e..76d1272a 100644
--- a/v2/test/utils/ReceiverEVM.sol
+++ b/v2/test/utils/ReceiverEVM.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.20;
+pragma solidity 0.8.26;
 
 import "./IReceiverEVM.sol";
 import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
diff --git a/v2/test/utils/SenderZEVM.sol b/v2/test/utils/SenderZEVM.sol
index 5398647c..4af26ed1 100644
--- a/v2/test/utils/SenderZEVM.sol
+++ b/v2/test/utils/SenderZEVM.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.20;
+pragma solidity 0.8.26;
 
 import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
 import "src/zevm/interfaces/IGatewayZEVM.sol";
diff --git a/v2/test/utils/SystemContract.sol b/v2/test/utils/SystemContract.sol
index 59027a1e..f11e2af1 100644
--- a/v2/test/utils/SystemContract.sol
+++ b/v2/test/utils/SystemContract.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.20;
+pragma solidity 0.8.26;
 
 import "src/zevm/interfaces/IZRC20.sol";
 import "src/zevm/interfaces/zContract.sol";
diff --git a/v2/test/utils/SystemContractMock.sol b/v2/test/utils/SystemContractMock.sol
index 423f2502..446429e8 100644
--- a/v2/test/utils/SystemContractMock.sol
+++ b/v2/test/utils/SystemContractMock.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.20;
+pragma solidity 0.8.26;
 
 import "src/zevm/interfaces/IZRC20.sol";
 import "src/zevm/interfaces/zContract.sol";
diff --git a/v2/test/utils/TestERC20.sol b/v2/test/utils/TestERC20.sol
index 8bca78de..5712f7fb 100644
--- a/v2/test/utils/TestERC20.sol
+++ b/v2/test/utils/TestERC20.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.20;
+pragma solidity 0.8.26;
 
 import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
 
diff --git a/v2/test/utils/TestZContract.sol b/v2/test/utils/TestZContract.sol
index c3f0837e..62003285 100644
--- a/v2/test/utils/TestZContract.sol
+++ b/v2/test/utils/TestZContract.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.20;
+pragma solidity 0.8.26;
 
 import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
 import "src/zevm/interfaces/zContract.sol";
diff --git a/v2/test/utils/WZETA.sol b/v2/test/utils/WZETA.sol
index 21626b93..2ecb7047 100644
--- a/v2/test/utils/WZETA.sol
+++ b/v2/test/utils/WZETA.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.20;
+pragma solidity 0.8.26;
 
 contract WETH9 {
     string public name = "Wrapped Ether";
diff --git a/v2/test/utils/ZRC20New.sol b/v2/test/utils/ZRC20New.sol
index 7ff4cad8..f720db56 100644
--- a/v2/test/utils/ZRC20New.sol
+++ b/v2/test/utils/ZRC20New.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.20;
+pragma solidity 0.8.26;
 
 import "src/zevm/interfaces/ISystem.sol";
 import "src/zevm/interfaces/IZRC20.sol";
diff --git a/v2/test/utils/Zeta.non-eth.sol b/v2/test/utils/Zeta.non-eth.sol
index a420890d..31414d7c 100644
--- a/v2/test/utils/Zeta.non-eth.sol
+++ b/v2/test/utils/Zeta.non-eth.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.0;
+pragma solidity 0.8.26;
 
 import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
 import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol";