diff --git a/.github/workflows/backend-ci.yaml b/.github/workflows/backend-ci.yaml
index c810e7b5..dbafdccf 100644
--- a/.github/workflows/backend-ci.yaml
+++ b/.github/workflows/backend-ci.yaml
@@ -1,16 +1,16 @@
-name: CI
+name: Backend CI
 
 on:
     push:
         branches:
-            - main
             - '[0-9]+.[0-9]+'
     pull_request: ~
+    workflow_dispatch: ~
 
 jobs:
     cs-fix:
         name: Run code style check
-        runs-on: "ubuntu-24.04"
+        runs-on: "ubuntu-26.04"
         strategy:
             matrix:
                 php:
@@ -20,17 +20,21 @@ jobs:
 
             -   uses: ibexa/gh-workflows/actions/composer-install@main
                 with:
+                    php-version: ${{ matrix.php }}
                     gh-client-id: ${{ secrets.AUTOMATION_CLIENT_ID }}
                     gh-client-secret: ${{ secrets.AUTOMATION_CLIENT_SECRET }}
                     satis-network-key: ${{ secrets.SATIS_NETWORK_KEY }}
                     satis-network-token: ${{ secrets.SATIS_NETWORK_TOKEN }}
 
             -   name: Run code style check
-                run: composer run-script check-cs -- --format=checkstyle | cs2pr
+                shell: bash
+                run: |
+                    set -euo pipefail
+                    composer run-script check-cs -- --format=checkstyle | cs2pr
 
     tests:
         name: Unit & integration tests
-        runs-on: "ubuntu-24.04"
+        runs-on: "ubuntu-26.04"
         timeout-minutes: 15
 
         strategy:
@@ -46,6 +50,7 @@ jobs:
 
             -   uses: ibexa/gh-workflows/actions/composer-install@main
                 with:
+                    php-version: ${{ matrix.php }}
                     gh-client-id: ${{ secrets.AUTOMATION_CLIENT_ID }}
                     gh-client-secret: ${{ secrets.AUTOMATION_CLIENT_SECRET }}
                     satis-network-key: ${{ secrets.SATIS_NETWORK_KEY }}
diff --git a/.github/workflows/integration-tests-callable.yaml b/.github/workflows/integration-tests-callable.yaml
index 4071e743..dd83738c 100644
--- a/.github/workflows/integration-tests-callable.yaml
+++ b/.github/workflows/integration-tests-callable.yaml
@@ -12,7 +12,7 @@ env:
 
 jobs:
     functional-tests-rest:
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-26.04
         timeout-minutes: 15
 
         strategy:
diff --git a/.github/workflows/pr-assign.yaml b/.github/workflows/pr-assign.yaml
deleted file mode 100644
index 302423e3..00000000
--- a/.github/workflows/pr-assign.yaml
+++ /dev/null
@@ -1,10 +0,0 @@
-name: Assign Pull Request to maintainers
-
-on:
-    pull_request_target:
-
-jobs:
-    assign:
-        uses: ibexa/gh-workflows/.github/workflows/pr-assign.yml@main
-        secrets:
-            robot-token: ${{ secrets.EZROBOT_PAT }}