diff --git a/docs/Dockerfile b/docs/Dockerfile
index b1fa52c4..3ef81078 100644
--- a/docs/Dockerfile
+++ b/docs/Dockerfile
@@ -1,4 +1,4 @@
-FROM ruby:2.1
+FROM ruby:2.6.7
 MAINTAINER mrafayaleem@gmail.com
 
 RUN apt-get clean \