diff --git a/requirements.txt b/requirements.txt
index 752e52e..4d17f19 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-# ============================================================
+# ============================================================
 # Web 框架
 # ============================================================
 tornado == 6.5.8
@@ -26,4 +26,5 @@ PyJWT == 2.13.0
 python-dotenv == 1.2.2
 redis == 8.0.1
 SQLAlchemy == 2.0.51
-bleach == 6.4.0
\ No newline at end of file
+bleach == 6.4.0
+tinycss2 == 1.5.1
\ No newline at end of file