diff --git a/Dockerfile b/Dockerfile
index 2e72097..83243ec 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,7 +8,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
 
 RUN gem update --system
-RUN gem install bundler:2.3.7
+RUN gem install bundler:2.3.8
 
 WORKDIR /usr/src/app
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 0020d28..e5ee824 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -304,4 +304,4 @@ RUBY VERSION
    ruby 3.1.1p18
 
 BUNDLED WITH
-   2.3.7
+   2.3.8