diff --git a/.github/workflows/mongodb-service.yml b/.github/workflows/mongodb-service.yml
index 51fbd33..3142e41 100644
--- a/.github/workflows/mongodb-service.yml
+++ b/.github/workflows/mongodb-service.yml
@@ -3,20 +3,20 @@ name: Mongodb Service Example
 on:
   push:
     branches:
-    - master
+    - main
   pull_request:
     branches:
-    - master
-    
+    - main
+
 defaults:
   run:
     working-directory: ./mongodb
-    
+
 jobs:
   container-job:
     runs-on: ubuntu-latest
-    
-    # runs all of the steps inside the specified container rather than on the VM host.  
+
+    # runs all of the steps inside the specified container rather than on the VM host.
     # Because of this the network configuration changes from host based network to a container network.
     container:
       image:  node:10.16-jessie
@@ -26,9 +26,9 @@ jobs:
         image: mongo
         ports:
         - 27017:27017
-          
+
     steps:
-    - uses: actions/checkout@v1     
+    - uses: actions/checkout@v1
     - run: npm ci
     - run: node client.js
       env:
@@ -50,7 +50,7 @@ jobs:
         - 27017/tcp
 
     steps:
-    - uses: actions/checkout@v1     
+    - uses: actions/checkout@v1
     - run: npm ci
     - run: node client.js
       env:
diff --git a/.github/workflows/postgres-service.yml b/.github/workflows/postgres-service.yml
index cce3f4c..30f623b 100644
--- a/.github/workflows/postgres-service.yml
+++ b/.github/workflows/postgres-service.yml
@@ -3,16 +3,16 @@ name: Postgres Service Example
 on:
   push:
     branches:
-    - master
+    - main
   pull_request:
     branches:
-    - master
+    - main
 
 jobs:
   container-job:
     runs-on: ubuntu-latest
-    
-    # runs all of the steps inside the specified container rather than on the VM host.  
+
+    # runs all of the steps inside the specified container rather than on the VM host.
     # Because of this the network configuration changes from host based network to a container network.
     container:
       image:  node:10.16-jessie
@@ -30,7 +30,7 @@ jobs:
         options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5
 
     steps:
-    - uses: actions/checkout@v1     
+    - uses: actions/checkout@v1
     - run: npm ci
       working-directory: ./postgres
     - run: node client.js
@@ -60,7 +60,7 @@ jobs:
         options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5
 
     steps:
-    - uses: actions/checkout@v1     
+    - uses: actions/checkout@v1
     - run: npm ci
       working-directory: ./postgres
     - run: node client.js
diff --git a/.github/workflows/redis-service.yml b/.github/workflows/redis-service.yml
index a136280..dfa68e8 100644
--- a/.github/workflows/redis-service.yml
+++ b/.github/workflows/redis-service.yml
@@ -3,10 +3,10 @@ name: Redis Service Example
 on:
   push:
     branches:
-    - master
+    - main
   pull_request:
     branches:
-    - master
+    - main
 
 jobs:
   container-job: