diff --git a/setup.cfg b/setup.cfg
index d87d6aa..2353d0f 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -17,7 +17,7 @@ install_requires =
     debts==0.5
     emails==0.6
     Weasyprint==51
-    MarkupSafe==2.0.1
+    MarkupSafe==2.1.3
 
 [options.extras_require]
 dev =