dependency fix

eive_tmtc/cfdp/user.py

@@ -4,7 +4,8 @@ import logging
 from spacepackets.cfdp import ConditionCode
 from spacepackets.util import UnsignedByteField
 from cfdppy import CfdpUserBase, TransactionId
-from cfdppy.mib import CheckTimerProvider, Countdown, EntityType
+from cfdppy.mib import CheckTimerProvider, EntityType
+from spacepackets.countdown import Countdown
 from cfdppy.user import (
     TransactionFinishedParams,
     MetadataRecvParams,

pyproject.toml

@@ -29,7 +29,7 @@ classifiers = [
   "Topic :: Scientific/Engineering"
 ]
 dependencies = [
-  "tmtccmd ~= 8.1",
+  "tmtccmd ~= 8.1.1",
   # "tmtccmd @ git+https://github.com/robamu-org/tmtccmd@main",
   "cfdp-py>=0.4, <=0.5",
   "python-dateutil ~= 2.8",