diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d93c432..e98d317 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,20 +6,16 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby:
-          - '3.3'
-          - '3.2'
-          - '3.1'
-          - ruby-head
-        rails_version:
-          - '7.2'
-          - '6.1'
-        exclude:
-          - ruby: '3.2'
-            rails_version: '6.1'
-          - ruby: '3.3'
-            rails_version: '6.1'
+        include:
           - ruby: ruby-head
+            rails_version: '7.2'
+          - ruby: '3.3'
+            rails_version: '7.2'
+          - ruby: '3.2'
+            rails_version: '7.2'
+          - ruby: '3.1'
+            rails_version: '7.2'
+          - ruby: '3.1'
             rails_version: '6.1'
     runs-on: ubuntu-latest
     env:
diff --git a/gemfiles/5.0.gemfile b/gemfiles/5.0.gemfile
deleted file mode 100644
index 6ae5b87..0000000
--- a/gemfiles/5.0.gemfile
+++ /dev/null
@@ -1,5 +0,0 @@
-source 'https://rubygems.org'
-
-gem 'activerecord', '~> 5.0.0'
-
-gemspec path: '../'
diff --git a/gemfiles/5.1.gemfile b/gemfiles/5.1.gemfile
deleted file mode 100644
index 5e1ee6d..0000000
--- a/gemfiles/5.1.gemfile
+++ /dev/null
@@ -1,5 +0,0 @@
-source 'https://rubygems.org'
-
-gem 'activerecord', '~> 5.1.1'
-
-gemspec path: '../'
diff --git a/gemfiles/5.2.gemfile b/gemfiles/5.2.gemfile
deleted file mode 100644
index 34d0dd8..0000000
--- a/gemfiles/5.2.gemfile
+++ /dev/null
@@ -1,5 +0,0 @@
-source 'https://rubygems.org'
-
-gem 'activerecord', '~> 5.2.0'
-
-gemspec path: '../'
diff --git a/gemfiles/6.0.gemfile b/gemfiles/6.0.gemfile
deleted file mode 100644
index ff86934..0000000
--- a/gemfiles/6.0.gemfile
+++ /dev/null
@@ -1,5 +0,0 @@
-source 'https://rubygems.org'
-
-gem 'activerecord', '~> 6.0.0'
-
-gemspec path: '../'
diff --git a/gemfiles/7.0.gemfile b/gemfiles/7.2.gemfile
similarity index 100%
rename from gemfiles/7.0.gemfile
rename to gemfiles/7.2.gemfile