diff --git a/.github/workflows/build-phar.yml b/.github/workflows/build-phar.yml
index 2bb771f26c..6c13cba0a2 100644
--- a/.github/workflows/build-phar.yml
+++ b/.github/workflows/build-phar.yml
@@ -6,7 +6,7 @@ on:
   push:
     branches:
       - master
-      - 4.0
+      - 4.x
     paths:
       - '.github/workflows/build-phar.yml'
       - '.github/workflows/reusable-build-phar.yml'
diff --git a/.github/workflows/label-merge-conflicts.yml b/.github/workflows/label-merge-conflicts.yml
index 6eac6fc86b..6ba10b3e73 100644
--- a/.github/workflows/label-merge-conflicts.yml
+++ b/.github/workflows/label-merge-conflicts.yml
@@ -5,7 +5,7 @@ on:
   push:
     branches:
       - master
-      - 4.0
+      - 4.x
   # Check conflicts in new PRs and for resolved conflicts due to an open PR being updated.
   pull_request_target:
     types:
diff --git a/.github/workflows/quicktest.yml b/.github/workflows/quicktest.yml
index ae4ea326b4..43d4790dee 100644
--- a/.github/workflows/quicktest.yml
+++ b/.github/workflows/quicktest.yml
@@ -1,11 +1,11 @@
 name: Quicktest
 
 on:
-  # Run on pushes to all branches except for `master`/`4.0`.
+  # Run on pushes to all branches except for `master`/`4.x`.
   push:
     branches-ignore:
       - master
-      - 4.0
+      - 4.x
     paths-ignore:
       - '**.md'
   # Allow manually triggering the workflow.
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 83da62422a..83b47b812e 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -1,12 +1,12 @@
 name: Test
 
 on:
-  # Run on pushes to `master`/`4.0` and on all pull requests.
+  # Run on pushes to `master`/`4.x` and on all pull requests.
   # Prevent the build from running when there are only irrelevant changes.
   push:
     branches:
       - master
-      - 4.0
+      - 4.x
     tags:
       - '**'
     paths-ignore: