diff --git a/Dockerfile b/Dockerfile
index 56af0b0..f7e830b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,7 +5,7 @@ RUN apk update && apk upgrade && \
 
 COPY Gemfile Gemfile.lock .
 
-RUN gem install bundler:2.4.18 && \
+RUN gem install bundler -v "$(grep -A 1 "BUNDLED WITH" Gemfile.lock | tail -n 1)" && \
     bundle config set without 'development test' && \
     bundle install