diff --git a/requirements.txt b/requirements.txt
index dd79ce9..c019a5b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ blinker==1.4
 docutils==0.13.1
 feedgenerator==1.9
 Jinja2==2.9.6
-MarkupSafe==1.0
+MarkupSafe==1.1.1
 pelican==3.7.1
 Pygments==2.2.0
 python-dateutil==2.6.0