diff --git a/.github/workflows/coding-standards.yml b/.github/workflows/coding-standards.yml
index 27558283d74ff..b15dbd6a3db81 100644
--- a/.github/workflows/coding-standards.yml
+++ b/.github/workflows/coding-standards.yml
@@ -77,7 +77,7 @@ jobs:
 
   failed-workflow:
     name: Failed workflow tasks
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     permissions:
       actions: write
     needs: [ phpcs, jshint, slack-notifications ]
diff --git a/.github/workflows/end-to-end-tests.yml b/.github/workflows/end-to-end-tests.yml
index cf90d34402106..2e10e79b8a5ca 100644
--- a/.github/workflows/end-to-end-tests.yml
+++ b/.github/workflows/end-to-end-tests.yml
@@ -64,7 +64,7 @@ jobs:
 
   failed-workflow:
     name: Failed workflow tasks
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     permissions:
       actions: write
     needs: [ e2e-tests ]
diff --git a/.github/workflows/javascript-tests.yml b/.github/workflows/javascript-tests.yml
index e38485e128262..ae4ae8e938a02 100644
--- a/.github/workflows/javascript-tests.yml
+++ b/.github/workflows/javascript-tests.yml
@@ -65,7 +65,7 @@ jobs:
 
   failed-workflow:
     name: Failed workflow tasks
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     permissions:
       actions: write
     needs: [ test-js, slack-notifications ]
diff --git a/.github/workflows/php-compatibility.yml b/.github/workflows/php-compatibility.yml
index b4e39508f6216..596aaedbfb779 100644
--- a/.github/workflows/php-compatibility.yml
+++ b/.github/workflows/php-compatibility.yml
@@ -63,7 +63,7 @@ jobs:
 
   failed-workflow:
     name: Failed workflow tasks
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     permissions:
       actions: write
     needs: [ php-compatibility, slack-notifications ]
diff --git a/.github/workflows/phpunit-tests.yml b/.github/workflows/phpunit-tests.yml
index 8666dcf5c2a09..35a54a2c44019 100644
--- a/.github/workflows/phpunit-tests.yml
+++ b/.github/workflows/phpunit-tests.yml
@@ -41,7 +41,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ ubuntu-latest ]
+        os: [ ubuntu-26.04 ]
         # Test highest and lowest supported version of each major.
         php: [ '7.0', '7.4', '8.0', '8.2' ]
         db-type: [ 'mysql' ]
@@ -51,20 +51,20 @@ jobs:
 
         include:
           # Include jobs for PHP 7.4 with memcached.
-          - os: ubuntu-latest
+          - os: ubuntu-26.04
             php: '7.4'
             db-type: 'mysql'
             db-version: '5.7'
             multisite: false
             memcached: true
-          - os: ubuntu-latest
+          - os: ubuntu-26.04
             php: '7.4'
             db-type: 'mysql'
             db-version: '5.7'
             multisite: true
             memcached: true
           # Report the results of the PHP 7.4 without memcached job.
-          - os: ubuntu-latest
+          - os: ubuntu-26.04
             php: '7.4'
             db-type: 'mysql'
             db-version: '5.7'
@@ -99,7 +99,7 @@ jobs:
 
   failed-workflow:
     name: Failed workflow tasks
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     permissions:
       actions: write
     needs: [ test-php, slack-notifications ]
diff --git a/.github/workflows/test-build-processes.yml b/.github/workflows/test-build-processes.yml
index 1ff05f1b93468..2e925b8eb1e50 100644
--- a/.github/workflows/test-build-processes.yml
+++ b/.github/workflows/test-build-processes.yml
@@ -45,11 +45,11 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ ubuntu-latest, windows-latest ]
+        os: [ ubuntu-26.04, windows-2025 ]
         directory: [ 'src', 'build' ]
         include:
           # Only prepare artifacts once.
-          - os: ubuntu-latest
+          - os: ubuntu-26.04
             directory: 'build'
             save-build: true
             prepare-playground: ${{ github.event_name == 'pull_request' && true || '' }}
@@ -103,7 +103,7 @@ jobs:
 
   failed-workflow:
     name: Failed workflow tasks
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     permissions:
       actions: write
     needs: [ slack-notifications ]