diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 2de482d6..6053acf9 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -27,7 +27,7 @@ jobs:
       - name: Setup Ruby
         uses: ruby/setup-ruby@09a7688d3b55cf0e976497ff046b70949eeaccfd # v1.288.0
         with:
-          ruby-version: "3.2"
+          ruby-version: "4.0.1"
           bundler-cache: true
 
       - name: Run tests
diff --git a/.ruby-version b/.ruby-version
index 0aec50e6..1454f6ed 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-3.1.4
+4.0.1