diff --git a/.bundle/config b/.bundle/config
deleted file mode 100644
index 9bc01b4c32..0000000000
--- a/.bundle/config
+++ /dev/null
@@ -1,3 +0,0 @@
----
-BUNDLE_PATH: "vendor/bundle"
-BUNDLE_DISABLE_SHARED_GEMS: "true"
diff --git a/Dockerfile b/Dockerfile
index 5ec353962f..53f6af08ff 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
-FROM ruby:2.7.6
+FROM ruby:3.0.5
 
-RUN gem install bundler:2.3.10
+RUN gem install bundler:2.4.7
 
 WORKDIR /srv/jekyll