diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 4311743f8eae16cac93da01c27c6313f24803938..654ef7c885ffabd6a0b00035d4bd8e41323bf63b 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,4 +1,4 @@
-image: ruby
+image: ruby:3.3
 
 before_script:
   - gem install bundler:2.3.26
diff --git a/Gemfile b/Gemfile
index 47961632dbdcc34fc2c8ee756500f223598cd058..43563e9473483611d9f5d950797b9f41f92f05cd 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,5 +2,3 @@ source "https://rubygems.org"
 gemspec
 
 gem "webrick", "~> 1.7"
-gem "csv"
-gem "base64"
\ No newline at end of file