diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 896a2df..87abea2 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -27,11 +27,12 @@ jobs:
           - ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v4
-    - name: Set up Ruby
-      uses: ruby/setup-ruby@v1
-      with:
-        ruby-version: ${{ matrix.ruby }}
-        bundler-cache: true
-    - name: Run the default task
-      run: bundle exec rake
+      - uses: actions/checkout@v4
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          bundler-cache: true
+          rubygems: latest
+      - name: Run the default task
+        run: bundle exec rake
diff --git a/Gemfile.lock b/Gemfile.lock
index efc03ab..41194e9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -6,22 +6,29 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    io-console (0.6.0)
-    irb (1.6.2)
-      reline (>= 0.3.0)
-    power_assert (2.0.2)
+    io-console (0.7.2)
+    irb (1.12.0)
+      rdoc
+      reline (>= 0.4.2)
+    power_assert (2.0.3)
     prettier_print (1.2.1)
-    rake (13.0.6)
-    reline (0.3.2)
+    psych (5.1.2)
+      stringio
+    rake (13.1.0)
+    rdoc (6.6.3.1)
+      psych (>= 4.0.0)
+    reline (0.4.3)
       io-console (~> 0.5)
-    syntax_tree (6.1.1)
+    stringio (3.1.0)
+    syntax_tree (6.2.0)
       prettier_print (>= 1.2.0)
-    test-unit (3.5.5)
+    test-unit (3.6.2)
       power_assert
 
 PLATFORMS
   arm64-darwin-21
   arm64-darwin-22
+  arm64-darwin-23
   x86_64-linux
 
 DEPENDENCIES