diff --git a/Dockerfile b/Dockerfile
index 9013dfc9..60d2e307 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ruby:2.7.4
+FROM ruby:2.7.5
 
 RUN apt-get update && \
   apt-get install --reinstall -y locales && \