diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 053e87e..4b87a79 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -16,7 +16,7 @@ before_script:
     ruby ruby-dev yaml yaml-dev
     libffi-dev build-base git nodejs
   - gem install etc --no-document
-  - gem install bundler -v 2.3.26
+  - gem install bundler -v 2.4.22 --no-document
   - pwd
   - ls -l
   - bundle install
diff --git a/Dockerfile b/Dockerfile
index f67e513..17b5135 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,7 +12,7 @@ RUN apk list -I && \
     libffi-dev build-base git nodejs
 RUN gem env
 RUN gem install etc --no-document
-RUN gem install bundler -v 2.3.26
+RUN gem install bundler -v 2.4.22 --no-document
 RUN pwd
 RUN ls -l
 RUN bundle install