diff --git a/.github/workflows/pr-build.yml b/.github/workflows/pr-build.yml
index 2214d0a86..31a41b923 100644
--- a/.github/workflows/pr-build.yml
+++ b/.github/workflows/pr-build.yml
@@ -26,7 +26,7 @@ jobs:
       - name: Set up Ruby 3.2
         uses: ruby/setup-ruby@6ca151fd1bfcfd6fe0c4eb6837eb0584d0134a0c # v1.290.0
         with:
-          ruby-version: 3.4.8
+          ruby-version: 4.0.1
 
       - name: Install and Build 🔧
         run: |
diff --git a/.github/workflows/site-build.yml b/.github/workflows/site-build.yml
index 8dccb58ac..d728fcce6 100644
--- a/.github/workflows/site-build.yml
+++ b/.github/workflows/site-build.yml
@@ -26,7 +26,7 @@ jobs:
       - name: Set up Ruby 3.2
         uses: ruby/setup-ruby@6ca151fd1bfcfd6fe0c4eb6837eb0584d0134a0c # v1.290.0
         with:
-          ruby-version: 3.4.8
+          ruby-version: 4.0.1
 
       - name: Install and Build 🔧
         run: |