diff --git a/.github/workflows/elasticsearch.yml b/.github/workflows/elasticsearch.yml
index 5a57b5e..f80371e 100644
--- a/.github/workflows/elasticsearch.yml
+++ b/.github/workflows/elasticsearch.yml
@@ -2,9 +2,9 @@ name: Elasticsearch Docker Image CI
 
 on:
   push:
-    branches: [ "7.16", "7.17", "8.0", "8.1", "8.2", "8.3", "8.4", "8.5"]
+    branches: [ "7.17", "8.17", "8.18", "8.19", "9.0", "9.1"]
   pull_request:
-    branches: [ "7.16", "7.17", "8.0", "8.1", "8.2", "8.3", "8.4", "8.5"]
+    branches: [ "7.17", "8.17", "8.18", "8.19", "9.0", "9.1"]
 
 jobs:
 
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
     
     - name: Build the Elasticsearch Docker image
       run: docker build elasticsearch
diff --git a/.github/workflows/kibana.yml b/.github/workflows/kibana.yml
index 58554f2..2888409 100644
--- a/.github/workflows/kibana.yml
+++ b/.github/workflows/kibana.yml
@@ -2,9 +2,9 @@ name: Kibana Docker Image CI
 
 on:
   push:
-    branches: [ "7.16", "7.17", "8.0", "8.1", "8.2", "8.3", "8.4", "8.5"]
+    branches: [ "7.17", "8.17", "8.18", "8.19", "9.0", "9.1"]
   pull_request:
-    branches: [ "7.16", "7.17", "8.0", "8.1", "8.2", "8.3", "8.4", "8.5"]
+    branches: [ "7.17", "8.17", "8.18", "8.19", "9.0", "9.1"]
 
 jobs:
 
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
     
     - name: Build the Kibana Docker image
       run: docker build kibana
diff --git a/.github/workflows/logstash.yml b/.github/workflows/logstash.yml
index 695e1fe..849302f 100644
--- a/.github/workflows/logstash.yml
+++ b/.github/workflows/logstash.yml
@@ -2,9 +2,9 @@ name: Logstash Docker Image CI
 
 on:
   push:
-    branches: [ "7.16", "7.17", "8.0", "8.1", "8.2", "8.3", "8.4", "8.5"]
+    branches: ["8.17", "8.18", "8.19", "9.0", "9.1"]
   pull_request:
-    branches: [ "7.16", "7.17", "8.0", "8.1", "8.2", "8.3", "8.4", "8.5"]
+    branches: ["8.17", "8.18", "8.19", "9.0", "9.1"]
 
 jobs:
 
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
     
     - name: Build the Logstash Docker image
       run: docker build logstash