diff --git a/contracts/RewardRatePool.sol b/contracts/RewardRatePool.sol
index ab1e13c..cb3b2fa 100644
--- a/contracts/RewardRatePool.sol
+++ b/contracts/RewardRatePool.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-3.0
-pragma solidity ^0.8.20;
+pragma solidity ^0.8.26;
 
 import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
 import "@openzeppelin/contracts-upgradeable/access/Ownable2StepUpgradeable.sol";
diff --git a/contracts/SENT.sol b/contracts/SENT.sol
index b413c06..2c5e6c9 100644
--- a/contracts/SENT.sol
+++ b/contracts/SENT.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-3.0
-pragma solidity ^0.8.20;
+pragma solidity ^0.8.26;
 
 import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
 import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Permit.sol";
diff --git a/contracts/ServiceNodeContribution.sol b/contracts/ServiceNodeContribution.sol
index 33f6227..092d238 100644
--- a/contracts/ServiceNodeContribution.sol
+++ b/contracts/ServiceNodeContribution.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-3.0
-pragma solidity ^0.8.20;
+pragma solidity ^0.8.26;
 
 import "./libraries/Shared.sol";
 import "./interfaces/IServiceNodeRewards.sol";
diff --git a/contracts/ServiceNodeContributionFactory.sol b/contracts/ServiceNodeContributionFactory.sol
index 60b0a06..efa8452 100644
--- a/contracts/ServiceNodeContributionFactory.sol
+++ b/contracts/ServiceNodeContributionFactory.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-3.0
-pragma solidity ^0.8.20;
+pragma solidity ^0.8.26;
 
 import "./ServiceNodeContribution.sol";
 import "./interfaces/IServiceNodeRewards.sol";
diff --git a/contracts/ServiceNodeRewards.sol b/contracts/ServiceNodeRewards.sol
index bd7d197..d91df65 100644
--- a/contracts/ServiceNodeRewards.sol
+++ b/contracts/ServiceNodeRewards.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-3.0
-pragma solidity ^0.8.20;
+pragma solidity ^0.8.26;
 
 import "./interfaces/IServiceNodeRewards.sol";
 
diff --git a/contracts/interfaces/IServiceNodeRewards.sol b/contracts/interfaces/IServiceNodeRewards.sol
index 3017518..03260a6 100644
--- a/contracts/interfaces/IServiceNodeRewards.sol
+++ b/contracts/interfaces/IServiceNodeRewards.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-3.0
-pragma solidity ^0.8.20;
+pragma solidity ^0.8.26;
 
 import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
 import "../libraries/BN256G1.sol";
diff --git a/contracts/interfaces/ITokenVestingNoStaking.sol b/contracts/interfaces/ITokenVestingNoStaking.sol
index b4f50d5..b4088cd 100644
--- a/contracts/interfaces/ITokenVestingNoStaking.sol
+++ b/contracts/interfaces/ITokenVestingNoStaking.sol
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: MIT
 
-pragma solidity ^0.8.20;
+pragma solidity ^0.8.26;
 
 import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
 
diff --git a/contracts/interfaces/ITokenVestingStaking.sol b/contracts/interfaces/ITokenVestingStaking.sol
index 7282b7d..d365978 100644
--- a/contracts/interfaces/ITokenVestingStaking.sol
+++ b/contracts/interfaces/ITokenVestingStaking.sol
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: MIT
 
-pragma solidity ^0.8.20;
+pragma solidity ^0.8.26;
 
 import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
 import "../interfaces/IServiceNodeRewards.sol";
diff --git a/contracts/libraries/BN256G1.sol b/contracts/libraries/BN256G1.sol
index 6ed2b6a..28c5e84 100644
--- a/contracts/libraries/BN256G1.sol
+++ b/contracts/libraries/BN256G1.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-3.0
-pragma solidity ^0.8.20;
+pragma solidity ^0.8.26;
 
 library BN256G1 {
     uint256 internal constant FIELD_MODULUS = 0x30644e72e131a029b85045b68181585d97816a916871ca8d3c208c16d87cfd47;
diff --git a/contracts/libraries/BN256G2.sol b/contracts/libraries/BN256G2.sol
index 1a1a2c1..daa2701 100644
--- a/contracts/libraries/BN256G2.sol
+++ b/contracts/libraries/BN256G2.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-3.0
-pragma solidity ^0.8.20;
+pragma solidity ^0.8.26;
 
 /**
  * @title Elliptic curve operations on twist points for alt_bn128
diff --git a/contracts/libraries/Pairing.sol b/contracts/libraries/Pairing.sol
index 2e8222a..79b0d82 100644
--- a/contracts/libraries/Pairing.sol
+++ b/contracts/libraries/Pairing.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-3.0
-pragma solidity ^0.8.20;
+pragma solidity ^0.8.26;
 
 import "./BN256G1.sol";
 import "./BN256G2.sol";
diff --git a/contracts/libraries/Shared.sol b/contracts/libraries/Shared.sol
index 962d6d3..0a52b69 100644
--- a/contracts/libraries/Shared.sol
+++ b/contracts/libraries/Shared.sol
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: MIT
 
-pragma solidity ^0.8.20;
+pragma solidity ^0.8.26;
 
 /**
  * @title    Shared contract
diff --git a/contracts/test/BN256G2EchidnaTest.sol b/contracts/test/BN256G2EchidnaTest.sol
index c56fcc9..145cb36 100644
--- a/contracts/test/BN256G2EchidnaTest.sol
+++ b/contracts/test/BN256G2EchidnaTest.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: UNLICENSED
-pragma solidity ^0.8.20;
+pragma solidity ^0.8.26;
 
 import "../libraries/BN256G2.sol";
 
diff --git a/contracts/test/MockERC20.sol b/contracts/test/MockERC20.sol
index e1eeec1..e6c1d31 100644
--- a/contracts/test/MockERC20.sol
+++ b/contracts/test/MockERC20.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/contracts/test/MockServiceNodeRewards.sol b/contracts/test/MockServiceNodeRewards.sol
index c5f3107..2bcd065 100644
--- a/contracts/test/MockServiceNodeRewards.sol
+++ b/contracts/test/MockServiceNodeRewards.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-3.0
-pragma solidity ^0.8.20;
+pragma solidity ^0.8.26;
 
 import "../interfaces/IServiceNodeRewards.sol";
 
diff --git a/contracts/test/ServiceNodeContributionEchidnaTest.sol b/contracts/test/ServiceNodeContributionEchidnaTest.sol
index ed7554f..53e8348 100644
--- a/contracts/test/ServiceNodeContributionEchidnaTest.sol
+++ b/contracts/test/ServiceNodeContributionEchidnaTest.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-3.0
-pragma solidity ^0.8.20;
+pragma solidity ^0.8.26;
 
 import "../ServiceNodeContribution.sol";
 import "./MockERC20.sol";
diff --git a/contracts/test/TestModifierOnlyOperatorViaProxyContract.sol b/contracts/test/TestModifierOnlyOperatorViaProxyContract.sol
index f2e7a3c..6b54dad 100644
--- a/contracts/test/TestModifierOnlyOperatorViaProxyContract.sol
+++ b/contracts/test/TestModifierOnlyOperatorViaProxyContract.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-3.0
-pragma solidity ^0.8.20;
+pragma solidity ^0.8.26;
 
 interface IServiceNodeContribution {
     function cancelNode() external;
diff --git a/contracts/test/TestnetRewardRatePool.sol b/contracts/test/TestnetRewardRatePool.sol
index 152be48..b8f5a14 100644
--- a/contracts/test/TestnetRewardRatePool.sol
+++ b/contracts/test/TestnetRewardRatePool.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-3.0
-pragma solidity ^0.8.20;
+pragma solidity ^0.8.26;
 
 import "../RewardRatePool.sol";
 
diff --git a/contracts/test/TestnetServiceNodeRewards.sol b/contracts/test/TestnetServiceNodeRewards.sol
index 7d5a2ab..ec60abd 100644
--- a/contracts/test/TestnetServiceNodeRewards.sol
+++ b/contracts/test/TestnetServiceNodeRewards.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-3.0
-pragma solidity ^0.8.20;
+pragma solidity ^0.8.26;
 
 import "../ServiceNodeRewards.sol";
 
diff --git a/contracts/utils/TokenConverter.sol b/contracts/utils/TokenConverter.sol
index 468664f..4a0243c 100644
--- a/contracts/utils/TokenConverter.sol
+++ b/contracts/utils/TokenConverter.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-3.0
-pragma solidity ^0.8.20;
+pragma solidity ^0.8.26;
 
 import "@openzeppelin/contracts/utils/ReentrancyGuard.sol";
 import "@openzeppelin/contracts/access/Ownable.sol";
diff --git a/contracts/utils/TokenVestingNoStaking.sol b/contracts/utils/TokenVestingNoStaking.sol
index b5e3f4b..4fcf851 100644
--- a/contracts/utils/TokenVestingNoStaking.sol
+++ b/contracts/utils/TokenVestingNoStaking.sol
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: MIT
 
-pragma solidity ^0.8.20;
+pragma solidity ^0.8.26;
 
 import "../libraries/Shared.sol";
 import "../interfaces/ITokenVestingNoStaking.sol";
diff --git a/contracts/utils/TokenVestingStaking.sol b/contracts/utils/TokenVestingStaking.sol
index 1095b2f..da9acc2 100644
--- a/contracts/utils/TokenVestingStaking.sol
+++ b/contracts/utils/TokenVestingStaking.sol
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: MIT
 
-pragma solidity ^0.8.20;
+pragma solidity ^0.8.26;
 
 import "../libraries/Shared.sol";
 import "../interfaces/ITokenVestingStaking.sol";
diff --git a/hardhat.config.js b/hardhat.config.js
index e067bb4..431605d 100644
--- a/hardhat.config.js
+++ b/hardhat.config.js
@@ -21,7 +21,7 @@ module.exports = {
       }
   },
   solidity: {
-    version: '0.8.20',
+    version: '0.8.26',
     settings: {
       optimizer: {
         enabled: true,