diff --git a/src/trezor/messages/CardanoMessageSignature.py b/src/trezor/messages/CardanoMessageSignature.py
deleted file mode 100644
index bb007fd747..0000000000
--- a/src/trezor/messages/CardanoMessageSignature.py
+++ /dev/null
@@ -1,19 +0,0 @@
-# Automatically generated by pb2py
-# fmt: off
-import protobuf as p
-
-
-class CardanoMessageSignature(p.MessageType):
-    MESSAGE_WIRE_TYPE = 301
-    FIELDS = {
-        1: ('public_key', p.BytesType, 0),
-        2: ('signature', p.BytesType, 0),
-    }
-
-    def __init__(
-        self,
-        public_key: bytes = None,
-        signature: bytes = None,
-    ) -> None:
-        self.public_key = public_key
-        self.signature = signature
diff --git a/src/trezor/messages/CardanoSignMessage.py b/src/trezor/messages/CardanoSignMessage.py
deleted file mode 100644
index 434cd5efe2..0000000000
--- a/src/trezor/messages/CardanoSignMessage.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# Automatically generated by pb2py
-# fmt: off
-import protobuf as p
-
-if __debug__:
-    try:
-        from typing import List
-    except ImportError:
-        List = None  # type: ignore
-
-
-class CardanoSignMessage(p.MessageType):
-    MESSAGE_WIRE_TYPE = 300
-    FIELDS = {
-        1: ('address_n', p.UVarintType, p.FLAG_REPEATED),
-        2: ('message', p.BytesType, 0),
-    }
-
-    def __init__(
-        self,
-        address_n: List[int] = None,
-        message: bytes = None,
-    ) -> None:
-        self.address_n = address_n if address_n is not None else []
-        self.message = message
diff --git a/src/trezor/messages/CardanoVerifyMessage.py b/src/trezor/messages/CardanoVerifyMessage.py
deleted file mode 100644
index b335baac8d..0000000000
--- a/src/trezor/messages/CardanoVerifyMessage.py
+++ /dev/null
@@ -1,22 +0,0 @@
-# Automatically generated by pb2py
-# fmt: off
-import protobuf as p
-
-
-class CardanoVerifyMessage(p.MessageType):
-    MESSAGE_WIRE_TYPE = 302
-    FIELDS = {
-        1: ('public_key', p.BytesType, 0),
-        2: ('signature', p.BytesType, 0),
-        3: ('message', p.BytesType, 0),
-    }
-
-    def __init__(
-        self,
-        public_key: bytes = None,
-        signature: bytes = None,
-        message: bytes = None,
-    ) -> None:
-        self.public_key = public_key
-        self.signature = signature
-        self.message = message
diff --git a/vendor/trezor-common b/vendor/trezor-common
index b6f59d351a..843facd2c1 160000
--- a/vendor/trezor-common
+++ b/vendor/trezor-common
@@ -1 +1 @@
-Subproject commit b6f59d351a2007a9bc80a7cdef64669a87c17739
+Subproject commit 843facd2c18b22cefea2ba6e14cbad509d91988f