diff --git a/Heikin-Ashi/python/requirements.txt b/Heikin-Ashi/python/requirements.txt
index aaec16e..2845dce 100644
--- a/Heikin-Ashi/python/requirements.txt
+++ b/Heikin-Ashi/python/requirements.txt
@@ -14,7 +14,7 @@ futures==3.2.0
 idna==2.6
 ipaddress==1.0.22
 itsdangerous==0.24
-Jinja2==2.10
+Jinja2==2.11.3
 macholib==1.5.1
 MarkupSafe==1.0
 matplotlib==1.3.1