diff --git a/.openzeppelin/mainnet.json b/.openzeppelin/mainnet.json
index 97d044a4..4e72737b 100644
--- a/.openzeppelin/mainnet.json
+++ b/.openzeppelin/mainnet.json
@@ -21375,6 +21375,1424 @@
           }
         }
       }
+    },
+    "623177407e5807728f2ab6044725c17b0157b536a1da511b976e9b6c874648a9": {
+      "address": "0x2AAb2252B3ab6FEf1B06de977e02f981400d8EF1",
+      "txHash": "0x6ebc59195d2c34abd1993d3fd260920039d03cd42385f4219d8b27bd1715b6fd",
+      "layout": {
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+        "storage": [
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+            "label": "_initialized",
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+            "slot": "0",
+            "type": "t_uint8",
+            "contract": "Initializable",
+            "src": "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol:63",
+            "retypedFrom": "bool"
+          },
+          {
+            "label": "_initializing",
+            "offset": 1,
+            "slot": "0",
+            "type": "t_bool",
+            "contract": "Initializable",
+            "src": "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol:68"
+          },
+          {
+            "label": "______gap",
+            "offset": 0,
+            "slot": "1",
+            "type": "t_array(t_uint256)50_storage",
+            "contract": "InitializableWithGap",
+            "src": "contracts/thirdparty/openzeppelin/InitializableWithGap.sol:9"
+          },
+          {
+            "label": "__gap",
+            "offset": 0,
+            "slot": "51",
+            "type": "t_array(t_uint256)50_storage",
+            "contract": "ContextUpgradeable",
+            "src": "@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol:36"
+          },
+          {
+            "label": "_roles",
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+            "slot": "101",
+            "type": "t_mapping(t_bytes32,t_struct(RoleData)36438_storage)",
+            "contract": "AccessControlUpgradeableLegacy",
+            "src": "contracts/thirdparty/openzeppelin/AccessControlUpgradeableLegacy.sol:58"
+          },
+          {
+            "label": "__gap",
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+            "slot": "102",
+            "type": "t_array(t_uint256)49_storage",
+            "contract": "AccessControlUpgradeableLegacy",
+            "src": "contracts/thirdparty/openzeppelin/AccessControlUpgradeableLegacy.sol:193"
+          },
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+            "contract": "Permissions",
+            "src": "contracts/Permissions.sol:37"
+          },
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+            "slot": "152",
+            "type": "t_mapping(t_uint256,t_struct(Validator)8948_storage)",
+            "contract": "ValidatorService",
+            "src": "contracts/delegation/ValidatorService.sol:48"
+          },
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+            "type": "t_mapping(t_uint256,t_bool)",
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+            "src": "contracts/delegation/ValidatorService.sol:49"
+          },
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+            "slot": "154",
+            "type": "t_array(t_uint256)dyn_storage",
+            "contract": "ValidatorService",
+            "src": "contracts/delegation/ValidatorService.sol:50"
+          },
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+            "offset": 0,
+            "slot": "155",
+            "type": "t_mapping(t_address,t_uint256)",
+            "contract": "ValidatorService",
+            "src": "contracts/delegation/ValidatorService.sol:52"
+          },
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+            "slot": "156",
+            "type": "t_mapping(t_address,t_uint256)",
+            "contract": "ValidatorService",
+            "src": "contracts/delegation/ValidatorService.sol:54"
+          },
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+            "contract": "ValidatorService",
+            "src": "contracts/delegation/ValidatorService.sol:56"
+          },
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+            "type": "t_uint256",
+            "contract": "ValidatorService",
+            "src": "contracts/delegation/ValidatorService.sol:57"
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+            "contract": "ValidatorService",
+            "src": "contracts/delegation/ValidatorService.sol:58"
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+                "type": "t_array(t_bytes32)dyn_storage",
+                "offset": 0,
+                "slot": "0"
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+            "label": "struct IValidatorService.Validator",
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+                "type": "t_string_storage",
+                "offset": 0,
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+                "type": "t_address",
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+              {
+                "label": "requestedAddress",
+                "type": "t_address",
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+                "slot": "2"
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+                "label": "description",
+                "type": "t_string_storage",
+                "offset": 0,
+                "slot": "3"
+              },
+              {
+                "label": "feeRate",
+                "type": "t_uint256",
+                "offset": 0,
+                "slot": "4"
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+              {
+                "label": "registrationTime",
+                "type": "t_uint256",
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+                "slot": "5"
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+              {
+                "label": "minimumDelegationAmount",
+                "type": "t_uint256",
+                "offset": 0,
+                "slot": "6"
+              },
+              {
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+                "type": "t_bool",
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+            "numberOfBytes": "1"
+          }
+        }
+      }
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+    "9f2f748ca35095d14bee3706ce5f0e5ec96f484cf48f6033808704613d340771": {
+      "address": "0xB92754F681716dC3fE6BCb1C5249f8fa6F680889",
+      "txHash": "0x3761c2826e58b0761a5663bbcb0eb8a656b081a20af5474296805ca3d44f84bb",
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+            "slot": "0",
+            "type": "t_uint8",
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+            "src": "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol:63",
+            "retypedFrom": "bool"
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+            "type": "t_bool",
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+            "src": "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol:68"
+          },
+          {
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+            "offset": 0,
+            "slot": "1",
+            "type": "t_array(t_uint256)50_storage",
+            "contract": "InitializableWithGap",
+            "src": "contracts/thirdparty/openzeppelin/InitializableWithGap.sol:9"
+          },
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+            "type": "t_array(t_uint256)50_storage",
+            "contract": "ContextUpgradeable",
+            "src": "@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol:36"
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+            "contract": "Nodes",
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+            "type": "t_mapping(t_bytes4,t_bool)",
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+            "src": "contracts/Nodes.sol:73"
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+            "type": "t_mapping(t_bytes32,t_bool)",
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+            "type": "t_mapping(t_uint256,t_array(t_uint256)dyn_storage)",
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+            "label": "_nodesAmountBySpace",
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+            "type": "t_mapping(t_uint256,t_bool)",
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+                "type": "t_uint256",
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+                "type": "t_struct(AddressSet)4105_storage",
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+      }
     }
   }
 }
diff --git a/DEPLOYED b/DEPLOYED
index f859d7f1..b583662b 100644
--- a/DEPLOYED
+++ b/DEPLOYED
@@ -1 +1 @@
-1.9.3-stable.0
+1.9.4-stable.0
diff --git a/migrations/upgrade.ts b/migrations/upgrade.ts
index 5284cb65..99f68018 100644
--- a/migrations/upgrade.ts
+++ b/migrations/upgrade.ts
@@ -58,7 +58,7 @@ class SkaleManagerUpgrader extends Upgrader {
 
 async function main() {
     const upgrader = new SkaleManagerUpgrader(
-        "1.9.3",
+        "1.9.4",
         await getSkaleManagerAbiAndAddresses(),
         contracts,
     );
diff --git a/package.json b/package.json
index ee2c2502..899b69e9 100644
--- a/package.json
+++ b/package.json
@@ -44,7 +44,7 @@
     "@openzeppelin/contracts": "^4.9.3",
     "@openzeppelin/contracts-upgradeable": "^4.9.3",
     "@openzeppelin/hardhat-upgrades": "^1.14.0",
-    "@skalenetwork/skale-manager-interfaces": "2.0.0-develop.1",
+    "@skalenetwork/skale-manager-interfaces": "2.1.0",
     "@skalenetwork/upgrade-tools": "^2.0.1",
     "@typechain/hardhat": "^7.0.0",
     "dotenv": "^16.0.0",
diff --git a/yarn.lock b/yarn.lock
index e4804d15..6e34cc95 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1717,10 +1717,10 @@
   dependencies:
     "@sinonjs/commons" "^1.7.0"
 
-"@skalenetwork/skale-manager-interfaces@2.0.0-develop.1":
-  version "2.0.0-develop.1"
-  resolved "https://registry.yarnpkg.com/@skalenetwork/skale-manager-interfaces/-/skale-manager-interfaces-2.0.0-develop.1.tgz#fde4e8a40878b890f7e1b50dd8513a76eb1d2d46"
-  integrity sha512-SYm407j/RQlcTUcnIWWhPc8wK1AYxMIVhUgRSGhLblZ+4UJQuHAs2rz0aOiovvVaE5Xg2OYNwtCOd1gLW3wCDw==
+"@skalenetwork/skale-manager-interfaces@2.1.0":
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/@skalenetwork/skale-manager-interfaces/-/skale-manager-interfaces-2.1.0.tgz#baf3a5cb60aeb9c1583fbf6f422275291a65c2c1"
+  integrity sha512-tIaV/55lsCFGjus3MJ0HCpmX1HOi6KRpPM6GgUjT+6DoVflHALpsH+RmK9dzdvKd79dggieJc2GFzjwhMrsTEw==
 
 "@skalenetwork/upgrade-tools@^2.0.1":
   version "2.0.1"