diff --git a/packets.py b/packets.py
index 12351f4..3ec9dec 100644
--- a/packets.py
+++ b/packets.py
@@ -1035,9 +1035,9 @@ class LDAPNTLMChallenge(Packet):
 		("NTLMSSPNtTargetInfoLen",                    "\x94\x00"),
 		("NTLMSSPNtTargetInfoMaxLen",                 "\x94\x00"),
 		("NTLMSSPNtTargetInfoBuffOffset",             "\x56\x00\x00\x00"),
-		("NegTokenInitSeqMechMessageVersionHigh",     "\x05"),
-		("NegTokenInitSeqMechMessageVersionLow",      "\x02"),
-		("NegTokenInitSeqMechMessageVersionBuilt",    "\xce\x0e"),
+		("NegTokenInitSeqMechMessageVersionHigh",     "\x0a"),
+		("NegTokenInitSeqMechMessageVersionLow",      "\x00"),
+		("NegTokenInitSeqMechMessageVersionBuilt",    "\x7c\x4f"),
 		("NegTokenInitSeqMechMessageVersionReserved", "\x00\x00\x00"),
 		("NegTokenInitSeqMechMessageVersionNTLMType", "\x0f"),
 		("NTLMSSPNtWorkstationName",                  settings.Config.Domain),