diff --git a/src/apps/lisk/__init__.py b/src/apps/lisk/__init__.py
index 7c2835e48..c82515e26 100644
--- a/src/apps/lisk/__init__.py
+++ b/src/apps/lisk/__init__.py
@@ -1,6 +1,6 @@
 from trezor.wire import register, protobuf_workflow
 from trezor.messages.wire_types import \
-    LiskGetAddress, LiskSignMessage, LiskVerifyMessage, LiskSignTx, LiskGetPublicKey
+    LiskGetAddress, LiskSignTx, LiskGetPublicKey
 
 
 def dispatch_LiskGetAddress(*args, **kwargs):
@@ -13,16 +13,6 @@ def dispatch_LiskGetPublicKey(*args, **kwargs):
     return lisk_get_public_key(*args, **kwargs)
 
 
-def dispatch_LiskSignMessage(*args, **kwargs):
-    from .sign_message import lisk_sign_message
-    return lisk_sign_message(*args, **kwargs)
-
-
-def dispatch_LiskVerifyMessage(*args, **kwargs):
-    from .verify_message import lisk_verify_message
-    return lisk_verify_message(*args, **kwargs)
-
-
 def dispatch_LiskSignTx(*args, **kwargs):
     from .sign_tx import lisk_sign_tx
     return lisk_sign_tx(*args, **kwargs)
@@ -31,6 +21,4 @@ def dispatch_LiskSignTx(*args, **kwargs):
 def boot():
     register(LiskGetPublicKey, protobuf_workflow, dispatch_LiskGetPublicKey)
     register(LiskGetAddress, protobuf_workflow, dispatch_LiskGetAddress)
-    register(LiskSignMessage, protobuf_workflow, dispatch_LiskSignMessage)
-    register(LiskVerifyMessage, protobuf_workflow, dispatch_LiskVerifyMessage)
     register(LiskSignTx, protobuf_workflow, dispatch_LiskSignTx)
diff --git a/src/apps/lisk/sign_message.py b/src/apps/lisk/sign_message.py
deleted file mode 100644
index 2acfd3e57..000000000
--- a/src/apps/lisk/sign_message.py
+++ /dev/null
@@ -1,23 +0,0 @@
-from .helpers import LISK_CURVE, get_address_from_public_key
-from apps.wallet.sign_message import require_confirm_sign_message
-
-async def lisk_sign_message(ctx, msg):
-    from trezor.messages.LiskMessageSignature import LiskMessageSignature
-    from trezor.crypto.curve import ed25519
-    from ..common import seed
-
-    message = msg.message
-
-    await require_confirm_sign_message(ctx, message)
-
-    address_n = msg.address_n or ()
-
-    node = await seed.derive_node(ctx, address_n, LISK_CURVE)
-    seckey = node.private_key()
-    pubkey = node.public_key()
-    pubkey = pubkey[1:]  # skip ed25519 pubkey marker
-    address = get_address_from_public_key(pubkey)
-
-    signature = ed25519.sign(seckey, message)
-
-    return LiskMessageSignature(address=address, signature=signature)
diff --git a/src/apps/lisk/verify_message.py b/src/apps/lisk/verify_message.py
deleted file mode 100644
index cf3af668c..000000000
--- a/src/apps/lisk/verify_message.py
+++ /dev/null
@@ -1,19 +0,0 @@
-
-async def lisk_verify_message(ctx, msg):
-    from trezor.crypto.curve import ed25519
-    from .helpers import get_address_from_public_key
-    from trezor import wire
-    from trezor.messages.Success import Success
-    from trezor.messages.FailureType import ProcessError
-    from apps.wallet.verify_message import require_confirm_verify_message
-
-    verify = ed25519.verify(msg.public_key, msg.signature, msg.message)
-
-    if not verify:
-        raise wire.FailureError(ProcessError, 'Invalid signature')
-
-    address = get_address_from_public_key(msg.public_key)
-
-    await require_confirm_verify_message(ctx, address, msg.message)
-
-    return Success(message='Message verified')