diff --git a/iwanami/067/012/023.txt b/iwanami/067/012/023.txt
index 9d6098ee26e44bcfbcab68b14bd8a64c04db6be7..82c313ffd9c011f3e2f2ffd7abefb2016e7b7892 100644
--- a/iwanami/067/012/023.txt
+++ b/iwanami/067/012/023.txt
@@ -4,7 +4,7 @@
 3	月	月	NOUN	n,名詞,時,*	Case=Tem	2	clf	_	Gloss=month|SpaceAfter=No
 4	乙酉	乙酉	NUM	n,数詞,干支,*	NumType=Ord	2	conj	_	Gloss=[22nd-sexagenary]|SpaceAfter=No
 5	朔	朔	NOUN	n,名詞,時,*	Case=Tem	2	conj	_	Gloss=first-day-of-the-new-moon|SpaceAfter=No
-6	壬寅	壬寅	NUM	n,数詞,干支,*	NumType=Ord	2	conj	_	Gloss=[39th-sexagenary]|SpaceAfter=No
+6	壬寅	壬寅	NUM	n,数詞,干支,*	NumType=Ord	5	flat	_	Gloss=[39th-sexagenary]|SpaceAfter=No
 7	天	天	NOUN	n,名詞,制度,場	Case=Loc	8	nmod	_	Gloss=heaven|SpaceAfter=No
 8	皇	皇	NOUN	n,名詞,人,役割	_	9	nsubj	_	Gloss=august|SpaceAfter=No
 9	狩	狩	VERB	v,動詞,行為,動作	_	0	root	_	Gloss=hunt|SpaceAfter=No