diff --git a/requirements-win.txt b/requirements-win.txt
index 6174741..c44a0d2 100644
--- a/requirements-win.txt
+++ b/requirements-win.txt
@@ -6,7 +6,7 @@ et-xmlfile==1.0.1
 geopy==1.10.0
 ipython==3.1.0
 jdcal>=1.0
-Jinja2==2.7.3
+Jinja2==2.11.3
 livereload==2.4.0
 Markdown==2.6.2
 MarkupSafe==0.23
diff --git a/requirements.txt b/requirements.txt
index 8cb6884..7a4ff27 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ geopy==1.10.0
 gnureadline==6.3.3
 ipython==3.1.0
 jdcal>=1.0
-Jinja2==2.7.3
+Jinja2==2.11.3
 livereload==2.4.0
 Markdown==2.6.2
 MarkupSafe==0.23