diff --git a/src/requirements-dev.txt b/src/requirements-dev.txt
index b4200b1..9afb80e 100644
--- a/src/requirements-dev.txt
+++ b/src/requirements-dev.txt
@@ -8,7 +8,7 @@ Flask==0.12.2
 Flask-Limiter==1.0.1
 idna==2.6
 itsdangerous==0.24
-Jinja2==2.10
+Jinja2==2.11.3
 limits==1.3
 MarkupSafe==1.0
 netaddr==0.7.19
diff --git a/src/requirements.txt b/src/requirements.txt
index 9b7e222..e25ab37 100644
--- a/src/requirements.txt
+++ b/src/requirements.txt
@@ -8,7 +8,7 @@ Flask==0.12.2
 Flask-Limiter==1.0.1
 idna==2.6
 itsdangerous==0.24
-Jinja2==2.10
+Jinja2==2.11.3
 limits==1.3
 MarkupSafe==1.0
 netaddr==0.7.19