diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2909199..40fd085 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,7 +10,6 @@ jobs:
       fail-fast: false
       matrix:
         ruby:
-          - '2.4'
           - '2.5'
           - '2.6'
           - '2.7'
@@ -25,12 +24,6 @@ jobs:
           - mysql
           - postgresql
         exclude:
-          - ruby: 2.4
-            gemfile: gemfiles/rails_6_0.gemfile
-          - ruby: 2.4
-            gemfile: gemfiles/rails_6_1.gemfile
-          - ruby: 2.4
-            gemfile: gemfiles/rails_7_0.gemfile
           - ruby: 2.5
             gemfile: gemfiles/rails_7_0.gemfile
           - ruby: 2.6