diff --git a/.github/workflows/action-format.yml b/.github/workflows/action-format.yml
index a8024ec..b48bcbc 100644
--- a/.github/workflows/action-format.yml
+++ b/.github/workflows/action-format.yml
@@ -7,7 +7,7 @@ on:
 jobs:
   format:
     name: 'Format code'
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-26.04
     if: github.event.issue.pull_request != '' && contains(github.event.comment.body, '/format')
     steps:
       - name: 'Post acknowledgement that it will format code'
diff --git a/.github/workflows/ci.js.yml b/.github/workflows/ci.js.yml
index 9b81405..81cc8ee 100644
--- a/.github/workflows/ci.js.yml
+++ b/.github/workflows/ci.js.yml
@@ -9,7 +9,7 @@ on:
 
 jobs:
   precheck:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-26.04
 
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
@@ -28,7 +28,7 @@ jobs:
         run: bin/lint.sh
 
   ci:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-26.04
 
     strategy:
       matrix:
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 550d420..a399980 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -16,7 +16,7 @@ on:
 
 jobs:
   analyze:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-26.04
 
     strategy:
       fail-fast: false
diff --git a/.github/workflows/pr.ci.js.yml b/.github/workflows/pr.ci.js.yml
index 5712858..9170ebe 100644
--- a/.github/workflows/pr.ci.js.yml
+++ b/.github/workflows/pr.ci.js.yml
@@ -7,7 +7,7 @@ on: pull_request
 
 jobs:
   precheck:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-26.04
 
     steps:
       - name: Checkout PR
@@ -28,7 +28,7 @@ jobs:
         run: bin/lint.sh
 
   ci:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-26.04
 
     strategy:
       matrix:
diff --git a/.github/workflows/verify-code-formatting.yml b/.github/workflows/verify-code-formatting.yml
index 1029f86..294c385 100644
--- a/.github/workflows/verify-code-formatting.yml
+++ b/.github/workflows/verify-code-formatting.yml
@@ -7,7 +7,7 @@ on:
 
 jobs:
   verify:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-26.04
     steps:
       - name: 'Checkout code'
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd