diff --git a/Dockerfile b/Dockerfile
index 099e7b5..166d0d5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ruby:2.5.1
+FROM ruby:2.6.7
 
 RUN apt-get update &&\
     apt-get install -y git vim sqlite3 &&\