diff --git a/Dockerfile b/Dockerfile
index cb3935c..37a8c0e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ruby:2.6.4
+FROM ruby:2.7.8
 
 RUN gem install danger-gitlab && \
   gem install danger-android_lint && \