diff --git a/src/style.css b/src/style.css
index 09c3de3..90fd759 100644
--- a/src/style.css
+++ b/src/style.css
@@ -1,4 +1,4 @@
-@import url(http://fonts.googleapis.com/css?family=Open+Sans);
+@import url(https://fonts.googleapis.com/css?family=Open+Sans);
 
 .line-plot {
     position: relative;