diff --git a/.github/workflows/documentation-freshness.yml b/.github/workflows/documentation-freshness.yml
index f3309f4..f14fa40 100644
--- a/.github/workflows/documentation-freshness.yml
+++ b/.github/workflows/documentation-freshness.yml
@@ -12,7 +12,7 @@ permissions:
 
 jobs:
   freshness-and-routing:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     env:
       OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
       SENT_ROUTING_EVAL_MODEL: ${{ vars.SENT_ROUTING_EVAL_MODEL || 'gpt-5-mini' }}
diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
index 9a64324..a3fbfb7 100644
--- a/.github/workflows/validate.yml
+++ b/.github/workflows/validate.yml
@@ -13,7 +13,7 @@ permissions:
 
 jobs:
   validate:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1