diff --git a/.github/workflows/release_gem.yml b/.github/workflows/release_gem.yml
index 4d0b0b52..192c23b8 100644
--- a/.github/workflows/release_gem.yml
+++ b/.github/workflows/release_gem.yml
@@ -13,7 +13,7 @@ jobs:
     - uses: actions/checkout@v3
     - uses: ruby/setup-ruby@v1
       with:
-        ruby-version: '2.6'
+        ruby-version: '2.7'
     - run: |
         gem install bundler -v 2.1
         bundle install
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index b884a494..6723b012 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -8,7 +8,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby_version: ["2.4", "2.7", "3.0", "3.2"]
+        ruby_version: ["2.7", "3.0", "3.2"]
         os: ["ubuntu-latest","windows-latest","macos-latest"]
     steps:
       - uses: actions/checkout@v3