diff --git a/Dockerfile-bundle-base b/Dockerfile-bundle-base
index f83749f1..48fb6035 100644
--- a/Dockerfile-bundle-base
+++ b/Dockerfile-bundle-base
@@ -10,6 +10,6 @@ RUN set -ex && \
   chmod g+w $HOME && \
   apk add --update --no-cache make gcc libc-dev mariadb-dev postgresql-dev sqlite-dev
 
-RUN gem install bundler -v 2.1.4
+RUN gem install bundler -v 2.2.33
 COPY pact_broker/Gemfile pact_broker/Gemfile.lock $HOME/
 RUN bundle install --no-cache
diff --git a/Dockerfile-package-base b/Dockerfile-package-base
index 126907bd..9da2c08d 100644
--- a/Dockerfile-package-base
+++ b/Dockerfile-package-base
@@ -5,7 +5,7 @@ ENV HOME=/app
 WORKDIR $HOME
 
 RUN apk add --update --no-cache git
-RUN gem install bundler -v 2.1.4
+RUN gem install bundler -v 2.2.33
 
 COPY Rakefile $HOME/
 COPY Gemfile Gemfile.lock $HOME/
diff --git a/Gemfile.lock b/Gemfile.lock
index f0831133..6b00a794 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -207,4 +207,4 @@ DEPENDENCIES
   webrick (~> 1.6)
 
 BUNDLED WITH
-   2.1.4
+   2.2.33
diff --git a/pact_broker/Gemfile.lock b/pact_broker/Gemfile.lock
index 655c65f0..0a5c1ae1 100644
--- a/pact_broker/Gemfile.lock
+++ b/pact_broker/Gemfile.lock
@@ -168,4 +168,4 @@ DEPENDENCIES
   webrick (~> 1.6)
 
 BUNDLED WITH
-   2.1.4
+   2.2.33