diff --git a/ldapserver/requirements.txt b/ldapserver/requirements.txt
index 29aa6a7..52c4565 100644
--- a/ldapserver/requirements.txt
+++ b/ldapserver/requirements.txt
@@ -2,7 +2,7 @@ Click==7.0
 Flask==1.1.1
 gunicorn==20.0.4
 itsdangerous==1.1.0
-Jinja2==2.11.1
+Jinja2==2.11.3
 logging-tree==1.8.1
 MarkupSafe==1.1.1
 pyasn1==0.4.8