diff --git a/skale/contracts/delegation/validator_service.py b/skale/contracts/delegation/validator_service.py
index 1438f794..d4c188d5 100644
--- a/skale/contracts/delegation/validator_service.py
+++ b/skale/contracts/delegation/validator_service.py
@@ -152,6 +152,12 @@ def _enable_validator(self, validator_id: int) -> TxRes:
         func = self.contract.functions.enableValidator(validator_id)
         return post_transaction(self.skale.wallet, func, GAS['enable_validator'])
 
+    @transaction_method
+    def _disable_validator(self, validator_id: int) -> TxRes:
+        """For internal usage only"""
+        func = self.contract.functions.disableValidator(validator_id)
+        return post_transaction(self.skale.wallet, func, GAS['disable_validator'])
+
     def _is_validator_trusted(self, validator_id: int) -> bool:
         """For internal usage only"""
         return self.contract.functions.trustedValidators(validator_id).call()
diff --git a/skale/utils/constants.py b/skale/utils/constants.py
index 3a52edf5..f914407f 100644
--- a/skale/utils/constants.py
+++ b/skale/utils/constants.py
@@ -43,6 +43,7 @@
     'delegate': 3000000,
     'accept_pending_delegation': 1000000,
     'enable_validator': 1000000,
+    'disable_validator': 1000000,
     'link_node_address': 1000000,
     'unlink_node_address': 1000000,
     'cancel_pending_delegation': 1000000,
diff --git a/tests/contracts/delegation/validator_service_test.py b/tests/contracts/delegation/validator_service_test.py
index af2367a0..abfa0b60 100644
--- a/tests/contracts/delegation/validator_service_test.py
+++ b/tests/contracts/delegation/validator_service_test.py
@@ -122,6 +122,30 @@ def test_enable_validator(skale):
     assert is_validator_trusted
 
 
+def test_disable_validator(skale):
+    _generate_new_validator(skale)
+    latest_id = skale.validator_service.number_of_validators()
+
+    is_validator_trusted = skale.validator_service._is_validator_trusted(latest_id)
+    assert not is_validator_trusted
+
+    tx_res = skale.validator_service._enable_validator(
+        validator_id=latest_id,
+        wait_for=True
+    )
+    check_receipt(tx_res.receipt)
+
+    is_validator_trusted = skale.validator_service._is_validator_trusted(latest_id)
+    assert is_validator_trusted
+
+    tx_res = skale.validator_service._disable_validator(
+        validator_id=latest_id,
+        wait_for=True
+    )
+    is_validator_trusted = skale.validator_service._is_validator_trusted(latest_id)
+    assert not is_validator_trusted
+
+
 def test_is_validator_trusted(skale):
     is_validator_trusted = skale.validator_service._is_validator_trusted(D_VALIDATOR_ID)
     assert is_validator_trusted