diff --git a/make_opk.sh b/make_opk.sh
index afd2e94..0515d36 100755
--- a/make_opk.sh
+++ b/make_opk.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-OPK_NAME=st.opk
+OPK_NAME=st-`date +'%Y%m%d'`.opk
 
 echo ${OPK_NAME}