diff --git a/requirements.txt b/requirements.txt
index fc271cd..ef98975 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 structlog==17.2.0
 Flask==1.0.1
-Jinja2==2.11.3
+Jinja2==3.1.3
 elasticsearch==5.4.0
 Werkzeug==0.15.3
 pathlib2==2.3.4