diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 669b118..6531d49 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -57,7 +57,7 @@ jobs:
       - uses: actions/checkout@61b9e3751b92087fd0b06925ba6dd6314e06f089 # master
       - uses: ruby/setup-ruby@89f90524b88a01fe6e0b732220432cc6142926af # v1
         with:
-          ruby-version: "4.0.5"
+          ruby-version: "4.0.6"
           bundler-cache: true
         env:
           BUNDLE_WITHOUT: development