diff --git a/g-cloud/requirements.txt b/g-cloud/requirements.txt
index 54cb0b2..77c4fb3 100644
--- a/g-cloud/requirements.txt
+++ b/g-cloud/requirements.txt
@@ -110,7 +110,7 @@ isort==4.3.21
 itsdangerous==1.1.0
 jdcal==1.4.1
 jedi==0.14.1
-Jinja2==2.11.1
+Jinja2==2.11.3
 joblib==0.14.1
 json5==0.9.1
 jsonschema==3.2.0