diff --git a/smm4h/requirements.txt b/smm4h/requirements.txt
index 45171f1..3089616 100644
--- a/smm4h/requirements.txt
+++ b/smm4h/requirements.txt
@@ -38,7 +38,7 @@ ipython==6.2.1
 ipython-genutils==0.2.0
 ipywidgets==7.1.0
 jedi==0.11.1
-Jinja2==2.10.1
+Jinja2==2.11.3
 joblib==0.13.2
 jsonschema==2.6.0
 jupyter==1.0.0