diff --git a/.obsidian/plugins/obsidian-icon-folder/data.json b/.obsidian/plugins/obsidian-icon-folder/data.json
index ecc5852..6901a29 100644
--- a/.obsidian/plugins/obsidian-icon-folder/data.json
+++ b/.obsidian/plugins/obsidian-icon-folder/data.json
@@ -33,6 +33,5 @@
     "useInternalPlugins": false
   },
   "InterestingStuffs": "LiCoffee",
-  "力学书籍": "📚",
   "补课": "🧑‍🏫"
 }
\ No newline at end of file