diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index a97f583..6f44ac3 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -6,11 +6,14 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        - ruby_version: '3.1'
+        ruby31:
+          ruby_version: '3.1'
           env: gemfiles/ruby31.gemfile
-        - ruby_version: '3.2'
+        ruby32:
+          ruby_version: '3.2'
           env: gemfiles/ruby32.gemfile
-        - ruby_version: '3.3'
+        ruby33:
+          ruby_version: '3.3'
           env: gemfiles/ruby33.gemfile
     env:
       BUNDLE_GEMFILE: ${{ matrix.env }}