diff --git a/.all_images.yml b/.all_images.yml
index 8291307..25b8f57 100644
--- a/.all_images.yml
+++ b/.all_images.yml
@@ -1,7 +1,15 @@
 dockerfile: |-
-  RUN apk add --no-cache build-base git
-  RUN gem update --system
-  RUN gem install gem_hadar bundler
+  RUN apk add --no-cache build-base git bash
+  RUN bash <<NUR
+    if [[ "$(ruby -e 'print RUBY_VERSION')" > '3' ]]
+    then
+      gem update --system
+      gem install gem_hadar bundler
+    else
+      gem install gem_hadar
+      gem install bundler -v 2.4.22
+    fi
+  NUR
 
 script: &script |-
   echo -e "\e[1m"
@@ -15,3 +23,5 @@ images:
   ruby:3.2-alpine: *script
   ruby:3.1-alpine: *script
   ruby:3.0-alpine: *script
+  ruby:2.7-alpine: *script
+  ruby:2.6-alpine: *script