diff --git a/docs/requirements.txt b/docs/requirements.txt
index 0d7bd36..9721e7f 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -4,7 +4,7 @@ Babel==2.3.4
 CommonMark==0.5.4
 docutils==0.13.1
 imagesize==0.7.1
-Jinja2==2.8.1
+Jinja2==2.11.3
 MarkupSafe==0.23
 nilsimsa==0.3.8
 packaging==16.8