diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4b2fc280d..5581ecefc 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -68,7 +68,7 @@ jobs:
       working-directory: ./foreman 
       run: |
         sudo apt-get update && sudo apt-get -y install build-essential libpq-dev libsystemd-dev
-        gem install bundler
+        gem install bundler -v 2.4.22
         echo -n -e "gem 'foreman_fog_proxmox', :path => '../foreman_fog_proxmox'\n gem 'fog-proxmox', :path => '../fog-proxmox'\n gem 'simplecov'" > bundler.d/Gemfile.local.rb
         cp config/settings.yaml.test config/settings.yaml
         echo -n -e "test:\n adapter: postgresql \n port: 5432 \n database: foreman \n username: foreman \n password: foreman \n encoding: utf8 \n pool: 10" > config/database.yml