diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 5c6f4f9..3eb768d 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -29,7 +29,7 @@ on: # yamllint disable-line rule:truthy
     #        │  │ │ │ │
     #        │  │ │ │ │
     #        *  * * * *
-    - cron: '16 20 * * 0'
+    - cron: "16 20 * * 0"
 
 jobs:
   analyze:
@@ -40,8 +40,7 @@ jobs:
     #   - https://gh.io/using-larger-runners (GitHub.com only)
     # Consider using larger runners or machines with greater resources
     # for possible analysis time improvements.
-    runs-on:
-      ${{ (matrix.language == 'swift' && 'macos-14') || 'ubuntu-24.04' }}
+    runs-on: ${{ (matrix.language == 'swift' && 'macos-14') || 'ubuntu-26.04' }}
     permissions:
       # required for all workflows
       security-events: write
diff --git a/.github/workflows/markdown-lint.yml b/.github/workflows/markdown-lint.yml
index 051f6e7..54fe76d 100644
--- a/.github/workflows/markdown-lint.yml
+++ b/.github/workflows/markdown-lint.yml
@@ -19,7 +19,7 @@ permissions:
 jobs:
   markdownlint:
     name: Markdown Lint
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
 
     steps:
       - name: Checkout repository
diff --git a/.github/workflows/yamllint.yml b/.github/workflows/yamllint.yml
index 00e7d3e..4a0304c 100644
--- a/.github/workflows/yamllint.yml
+++ b/.github/workflows/yamllint.yml
@@ -1,5 +1,4 @@
 ---
-
 name: YAML lint
 
 on: # yamllint disable-line rule:truthy
@@ -19,7 +18,8 @@ jobs:
         uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
 
       - name: Install yamllint
-        run: pip install yamllint
+        run: |
+          pip install --only-binary :all: yamllint==1.38.0
 
       - name: Lint YAML files
         run: >