diff --git a/requirements.txt b/requirements.txt
index dd97a0d6..ab2337e2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ flask==1.0.2
 future==0.18.1
 idna==2.8
 itsdangerous==1.1.0
-jinja2==2.10.3
+jinja2==3.1.4
 line-bot-sdk==1.14.0
 markupsafe==1.1.1
 pygraphviz==1.5