diff --git a/Dockerfile b/Dockerfile
index 252b37a..a9e4620 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ruby:2.7.2
+FROM ruby:2.7.7
 
 COPY . /usr/src/app
 WORKDIR /usr/src/app