diff --git a/.rultor.yml b/.rultor.yml
index 9a4e507..b16435a 100644
--- a/.rultor.yml
+++ b/.rultor.yml
@@ -1,11 +1,12 @@
 docker:
-  image: yegor256/rultor-image:1.20.0
+  image: yegor256/rultor-image:1.22.0
 assets:
   rubygems.yml: yegor256/home#assets/rubygems.yml
 install: |
   pdd -f /dev/null
-  sudo bundle install --no-color "--gemfile=$(pwd)/Gemfile"
+  bundle install --no-color
 release:
+  pre: false
   script: |-
     [[ "${tag}" =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]] || exit -1
     bundle exec rake