diff --git a/multiversx_sdk_cli/accounts.py b/multiversx_sdk_cli/accounts.py
index 26037d3c..ca53d2a8 100644
--- a/multiversx_sdk_cli/accounts.py
+++ b/multiversx_sdk_cli/accounts.py
@@ -69,12 +69,12 @@ def __init__(self,
 
     def sign_transaction(self, transaction: ITransaction) -> str:
         assert self.signer is not None
-        return self.signer.sign(transaction).hex()
+        return self.signer.sign(transaction.serialize_for_signing()).hex()
 
     def sign_message(self, data: bytes) -> str:
         assert self.signer is not None
         message = MessageV1(data)
-        signature = self.signer.sign(message)
+        signature = self.signer.sign(message.serialize_for_signing())
 
         logger.debug(f"Account.sign_message(): raw_data_to_sign = {data.hex()}, message_data_to_sign = {message.serialize_for_signing().hex()}, signature = {signature.hex()}")
         return signature.hex()
diff --git a/multiversx_sdk_cli/delegation/staking_provider.py b/multiversx_sdk_cli/delegation/staking_provider.py
index 61d43d87..1bae35a1 100644
--- a/multiversx_sdk_cli/delegation/staking_provider.py
+++ b/multiversx_sdk_cli/delegation/staking_provider.py
@@ -2,7 +2,7 @@
 from pathlib import Path
 from typing import Any
 
-from multiversx_sdk_core import Address, ArbitraryMessage
+from multiversx_sdk_core import Address
 from multiversx_sdk_wallet.validator_pem import ValidatorPEM
 from multiversx_sdk_wallet.validator_signer import ValidatorSigner
 
@@ -52,9 +52,7 @@ def prepare_args_for_add_nodes(args: Any):
         pem_file = ValidatorPEM.from_file(validator_pem)
 
         validator_signer = ValidatorSigner(pem_file.secret_key)
-        message = ArbitraryMessage(bytes.fromhex(account.address.hex()))
-
-        signed_message = validator_signer.sign(message).hex()
+        signed_message = validator_signer.sign(account.address.pubkey).hex()
 
         add_nodes_data += f"@{pem_file.secret_key.generate_public_key().hex()}@{signed_message}"
 
diff --git a/multiversx_sdk_cli/sign_verify.py b/multiversx_sdk_cli/sign_verify.py
index 6e893620..1e79eef2 100644
--- a/multiversx_sdk_cli/sign_verify.py
+++ b/multiversx_sdk_cli/sign_verify.py
@@ -23,7 +23,7 @@ def verify_signature(self) -> bool:
         verifier = UserVerifier.from_address(Address.from_bech32(self.address))
         verifiable_message = MessageV1.from_string(self.message)
         verifiable_message.signature = bytes.fromhex(self.signature)
-        is_signed = verifier.verify(verifiable_message)
+        is_signed = verifier.verify(verifiable_message.serialize_for_signing(), verifiable_message.signature)
         return is_signed
 
     def to_dictionary(self) -> Dict[str, str]:
diff --git a/multiversx_sdk_cli/validators/core.py b/multiversx_sdk_cli/validators/core.py
index bc327ad6..e4c3b0b7 100644
--- a/multiversx_sdk_cli/validators/core.py
+++ b/multiversx_sdk_cli/validators/core.py
@@ -2,7 +2,7 @@
 from pathlib import Path
 from typing import Any, List, Tuple, Union
 
-from multiversx_sdk_core import Address, ArbitraryMessage
+from multiversx_sdk_core import Address
 from multiversx_sdk_wallet.validator_pem import ValidatorPEM
 from multiversx_sdk_wallet.validator_signer import ValidatorSigner
 
@@ -60,9 +60,7 @@ def prepare_transaction_data_for_stake(node_operator_address: Address, validator
         pem_file = ValidatorPEM.from_file(validator_pem)
 
         validator_signer = ValidatorSigner(pem_file.secret_key)
-        message = ArbitraryMessage(bytes.fromhex(node_operator_address.hex()))
-
-        signed_message = validator_signer.sign(message).hex()
+        signed_message = validator_signer.sign(node_operator_address.pubkey).hex()
 
         call_arguments.append(f"0x{pem_file.secret_key.generate_public_key().hex()}")
         call_arguments.append(f"0x{signed_message}")
diff --git a/pyproject.toml b/pyproject.toml
index e24bb482..178bf3b2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,7 +28,7 @@ dependencies = [
   "requests-cache",
   "rich==13.3.4",
   "multiversx-sdk-network-providers>=0.11.0",
-  "multiversx-sdk-wallet>=0.7.0, <0.8.0",
+  "multiversx-sdk-wallet>=0.8.0",
   "multiversx-sdk-core>=0.5.0"
 ]
 
diff --git a/requirements.txt b/requirements.txt
index 1038a8ac..cb9ddb4a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,4 +11,4 @@ rich==13.3.4
 
 multiversx-sdk-core==0.6.0
 multiversx-sdk-network-providers>=0.11.0
-multiversx-sdk-wallet>=0.7.0, < 0.8.0
+multiversx-sdk-wallet>=0.8.0