diff --git a/requirements.txt b/requirements.txt
index 308fcd2..8ac80f7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,7 +10,6 @@ pymongo==4.11
 redis==5.2.1
 requests==2.32.3
 websockets==14.2
-nkf==1.0.4
 Flask-Limiter==3.10.1
 git+https://github.com/yuukiwww/tjaf.git@d59e854b074012f6a31bd4c65b53edb6148b0ac7
 msgspec==0.19.0