diff --git a/.ruby-version b/.ruby-version
index 37c2961c..a603bb50 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.7.2
+2.7.5
diff --git a/Dockerfile b/Dockerfile
index 5b2d449a..5f637ee8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,4 @@
-# This Dockerfile is used with the docker-ckan dev stack
-FROM ruby:2.7.2
+FROM ruby:2.7.5
 
 WORKDIR /srv/app/datagovuk_find