diff --git a/update.json b/update.json
index 39ab21f..ea34058 100644
--- a/update.json
+++ b/update.json
@@ -6,10 +6,10 @@
         "version": "3.11.2"
     },
     "stable-preview": {
-        "jar": "https://hmcl.glavo.site/download/HMCL-3.11.2.jar",
-        "jarsha1": "1d99a9db49b7e7b295cca19dba97f587d6589491",
+        "jar": "https://hmcl.glavo.site/download/HMCL-3.12.1.jar",
+        "jarsha1": "971468fe32094d8bd342569eff46dfc519bf4024",
         "universal": "https://hmcl.huangyuhui.net",
-        "version": "3.11.2"
+        "version": "3.12.1"
     },
     "dev": {
         "jar": "https://hmcl.glavo.site/download/HMCL-3.13.0.333.jar",