diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 7f9d2dce1..39a2ce557 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -2,12 +2,12 @@ name: Build
 
 on:
   push:
-    branches: [ master ]
+    branches: [ master, 4.x ]
     paths-ignore:
       - 'Docs/**'
       - '**.md'
   pull_request:
-    branches: [ master ]
+    branches: [ master, 4.x ]
     paths-ignore:
       - 'Docs/**'
       - '**.md'
diff --git a/.github/workflows/determinism_check.yml b/.github/workflows/determinism_check.yml
index 96c9b6bd9..8cede01ec 100644
--- a/.github/workflows/determinism_check.yml
+++ b/.github/workflows/determinism_check.yml
@@ -6,12 +6,12 @@ env:
 
 on:
   push:
-    branches: [ master ]
+    branches: [ master, 4.x ]
     paths-ignore:
       - 'Docs/**'
       - '**.md'
   pull_request:
-    branches: [ master ]
+    branches: [ master, 4.x ]
     paths-ignore:
       - 'Docs/**'
       - '**.md'
diff --git a/.github/workflows/sonar-cloud.yml b/.github/workflows/sonar-cloud.yml
index bca857e80..0ba40c345 100644
--- a/.github/workflows/sonar-cloud.yml
+++ b/.github/workflows/sonar-cloud.yml
@@ -2,12 +2,12 @@ name: Sonar Cloud
 
 on:
   push:
-    branches: [ master ]
+    branches: [ master, 4.x ]
     paths-ignore:
       - 'Docs/**'
       - '**.md'
   pull_request:
-    branches: [ master ]
+    branches: [ master, 4.x ]
     paths-ignore:
       - 'Docs/**'
       - '**.md'