diff --git a/.github/workflows/pr-build.yml b/.github/workflows/pr-build.yml
index 61b112805..855376bc3 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@e69dcf3ded5967f30d7ef595704928d91cdae930 # v1.285.0
         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 37041742b..23bcb0ad3 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@e69dcf3ded5967f30d7ef595704928d91cdae930 # v1.285.0
         with:
-          ruby-version: 3.4.8
+          ruby-version: 4.0.1
 
       - name: Install and Build 🔧
         run: |