diff --git a/python/src/trezorlib/cli/nostr.py b/python/src/trezorlib/cli/nostr.py
index b52ac3b8a7..a0f1b14d4a 100644
--- a/python/src/trezorlib/cli/nostr.py
+++ b/python/src/trezorlib/cli/nostr.py
@@ -22,10 +22,10 @@ import typing as t
 import click
 
 from .. import messages, nostr, tools
-from . import with_client
+from . import with_session
 
 if t.TYPE_CHECKING:
-    from ..client import TrezorClient
+    from ..transport.session import Session
 
 
 PATH_TEMPLATE = "m/44h/1237h/{}h/0/0"
@@ -38,9 +38,9 @@ def cli() -> None:
 
 @cli.command()
 @click.option("-a", "--account", default=0, help="Account index")
-@with_client
+@with_session
 def get_pubkey(
-    client: "TrezorClient",
+    session: "Session",
     account: int,
 ) -> str:
     """Return the pubkey derived by the given path."""
@@ -48,7 +48,7 @@ def get_pubkey(
     address_n = tools.parse_path(PATH_TEMPLATE.format(account))
 
     return nostr.get_pubkey(
-        client,
+        session,
         address_n,
     ).hex()
 
@@ -56,9 +56,9 @@ def get_pubkey(
 @cli.command()
 @click.option("-a", "--account", default=0, help="Account index")
 @click.argument("event")
-@with_client
+@with_session
 def sign_event(
-    client: "TrezorClient",
+    session: "Session",
     account: int,
     event: str,
 ) -> dict[str, str]:
@@ -69,7 +69,7 @@ def sign_event(
     address_n = tools.parse_path(PATH_TEMPLATE.format(account))
 
     res = nostr.sign_event(
-        client,
+        session,
         messages.NostrSignEvent(
             address_n=address_n,
             created_at=event_json["created_at"],
diff --git a/python/src/trezorlib/nostr.py b/python/src/trezorlib/nostr.py
index 1db2c2127b..6710bc3d3d 100644
--- a/python/src/trezorlib/nostr.py
+++ b/python/src/trezorlib/nostr.py
@@ -20,12 +20,12 @@ from typing import TYPE_CHECKING
 from . import messages
 
 if TYPE_CHECKING:
-    from .client import TrezorClient
     from .tools import Address
+    from .transport.session import Session
 
 
-def get_pubkey(client: "TrezorClient", n: "Address") -> bytes:
-    return client.call(
+def get_pubkey(session: "Session", n: "Address") -> bytes:
+    return session.call(
         messages.NostrGetPubkey(
             address_n=n,
         ),
@@ -34,7 +34,7 @@ def get_pubkey(client: "TrezorClient", n: "Address") -> bytes:
 
 
 def sign_event(
-    client: "TrezorClient",
+    session: "Session",
     sign_event: messages.NostrSignEvent,
 ) -> messages.NostrEventSignature:
-    return client.call(sign_event, expect=messages.NostrEventSignature)
+    return session.call(sign_event, expect=messages.NostrEventSignature)
diff --git a/tests/device_tests/nostr/test_nostr.py b/tests/device_tests/nostr/test_nostr.py
index 465ca256eb..cc87741238 100644
--- a/tests/device_tests/nostr/test_nostr.py
+++ b/tests/device_tests/nostr/test_nostr.py
@@ -20,6 +20,7 @@ from hashlib import sha256
 import pytest
 
 from trezorlib import messages, nostr
+from trezorlib.debuglink import SessionDebugWrapper as Session
 from trezorlib.tools import parse_path
 
 pytestmark = [pytest.mark.altcoin, pytest.mark.models("core")]
@@ -87,9 +88,9 @@ SIGN_TEST_EVENT = messages.NostrSignEvent(
 
 
 @pytest.mark.parametrize("pubkey_hex,_", VECTORS)
-def test_get_pubkey(client, pubkey_hex, _):
+def test_get_pubkey(session: Session, pubkey_hex, _):
     response = nostr.get_pubkey(
-        client,
+        session,
         n=parse_path("m/44h/1237h/0h/0/0"),
     )
 
@@ -97,8 +98,8 @@ def test_get_pubkey(client, pubkey_hex, _):
 
 
 @pytest.mark.parametrize("pubkey_hex,expected_sig", VECTORS)
-def test_sign_event(client, pubkey_hex, expected_sig):
-    response = nostr.sign_event(client, SIGN_TEST_EVENT)
+def test_sign_event(session: Session, pubkey_hex, expected_sig):
+    response = nostr.sign_event(session, SIGN_TEST_EVENT)
 
     assert response.pubkey == bytes.fromhex(pubkey_hex)