@@ -285,7 +285,7 @@ workflows:
       - tests_macos:
           name: 'Execute tests on macOS (Xcode 14.3.1, Ruby 3.1)'
           xcode_version: '14.3.1'
-          ruby_version: '3.1
+          ruby_version: '3.1'
           ruby_opt: -W:deprecated
       - tests_macos:
           name: 'Execute tests on macOS (Xcode 15.0.1, Ruby 3.1)'