diff --git a/pynitrokey/cli/fido2.py b/pynitrokey/cli/fido2.py
index 43d94b4b..ea2656c8 100644
--- a/pynitrokey/cli/fido2.py
+++ b/pynitrokey/cli/fido2.py
@@ -784,7 +784,6 @@ def version(serial: Optional[str], udp: bool) -> None:
         res = nkfido2.find(serial, udp=udp).solo_version()
         major, minor, patch = res[:3]
         locked = ""
-        # @todo:
         if len(res) > 3:
             if res[3]:
                 locked = "locked"
diff --git a/pynitrokey/fido2/client.py b/pynitrokey/fido2/client.py
index 4e6bb006..6bd3d1f8 100644
--- a/pynitrokey/fido2/client.py
+++ b/pynitrokey/fido2/client.py
@@ -210,12 +210,12 @@ def bootloader_version(self) -> Tuple[int, int, int]:
             return (data[0], data[1], data[2])
         return (0, 0, data[0])
 
-    def solo_version(self) -> Union[bytes, Tuple[int, int, int]]:
+    def solo_version(self) -> bytes:
         try:
             return self.send_data_hid(0x61, b"")
         except CtapError:
             data = self.exchange(SoloExtension.version)
-            return (data[0], data[1], data[2])
+            return data[:3]
 
     def write_flash(self, addr: int, data: bytes) -> None:
         self.exchange(SoloBootloader.write, addr, data)