diff --git a/.github/workflows/spring-kafka-example.yml b/.github/workflows/spring-kafka-example.yml
index 80469a1..97d5de3 100644
--- a/.github/workflows/spring-kafka-example.yml
+++ b/.github/workflows/spring-kafka-example.yml
@@ -23,7 +23,7 @@ jobs:
         distribution: [ 'temurin' ]
         java: [ '21' ]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0
 
@@ -41,7 +41,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository and submodules
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           submodules: true
 
diff --git a/.github/workflows/spring-keycloak-example.yml b/.github/workflows/spring-keycloak-example.yml
index 37b4a34..a9de824 100644
--- a/.github/workflows/spring-keycloak-example.yml
+++ b/.github/workflows/spring-keycloak-example.yml
@@ -23,7 +23,7 @@ jobs:
         distribution: [ 'temurin' ]
         java: [ '21' ]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0
 
@@ -41,7 +41,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository and submodules
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           submodules: true
 
diff --git a/.github/workflows/spring-prometheus-grafana-example.yml b/.github/workflows/spring-prometheus-grafana-example.yml
index 45ddbaa..29c2e27 100644
--- a/.github/workflows/spring-prometheus-grafana-example.yml
+++ b/.github/workflows/spring-prometheus-grafana-example.yml
@@ -23,7 +23,7 @@ jobs:
         distribution: [ 'temurin' ]
         java: [ '21' ]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0
 
@@ -41,7 +41,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository and submodules
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           submodules: true
 
diff --git a/spring-kafka-example/.github/workflows/maven.yml b/spring-kafka-example/.github/workflows/maven.yml
index fa08395..b4d64c0 100644
--- a/spring-kafka-example/.github/workflows/maven.yml
+++ b/spring-kafka-example/.github/workflows/maven.yml
@@ -14,7 +14,7 @@ jobs:
         distribution: [ 'temurin' ]
         java: [ '21' ]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Setup Java 21
         uses: actions/setup-java@v4
diff --git a/spring-keycloak-example/.github/workflows/maven.yml b/spring-keycloak-example/.github/workflows/maven.yml
index fa08395..b4d64c0 100644
--- a/spring-keycloak-example/.github/workflows/maven.yml
+++ b/spring-keycloak-example/.github/workflows/maven.yml
@@ -14,7 +14,7 @@ jobs:
         distribution: [ 'temurin' ]
         java: [ '21' ]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Setup Java 21
         uses: actions/setup-java@v4
diff --git a/spring-keycloak-example/Dockerfile b/spring-keycloak-example/Dockerfile
index 73d1057..714babd 100644
--- a/spring-keycloak-example/Dockerfile
+++ b/spring-keycloak-example/Dockerfile
@@ -20,9 +20,11 @@ RUN --mount=type=bind,source=pom.xml,target=pom.xml \
 
 FROM eclipse-temurin:21.0.8_9-jre-jammy AS final
 
-RUN apt-get update && apt-get install -y nginx supervisor && rm -rf /var/lib/apt/lists/* #IT IS NOT NECESSARY IN PRODUCTION
-COPY docker/nginx/nginx.conf /etc/nginx/nginx.conf #IT IS NOT NECESSARY IN PRODUCTION
-COPY docker/nginx/supervisord.conf /etc/supervisor/conf.d/supervisord.conf #IT IS NOT NECESSARY IN PRODUCTION
+#<IT IS NOT NECESSARY IN PRODUCTION ---
+RUN apt-get update && apt-get install -y nginx supervisor && rm -rf /var/lib/apt/lists/*
+COPY docker/nginx/nginx.conf /etc/nginx/nginx.conf
+COPY docker/nginx/supervisord.conf /etc/supervisor/conf.d/supervisord.conf
+#--- IT IS NOT NECESSARY IN PRODUCTION>
 
 COPY --from=package /build/target/app.jar /app/app.jar
 
diff --git a/spring-prometheus-grafana-example/.github/workflows/maven.yml b/spring-prometheus-grafana-example/.github/workflows/maven.yml
index fa08395..b4d64c0 100644
--- a/spring-prometheus-grafana-example/.github/workflows/maven.yml
+++ b/spring-prometheus-grafana-example/.github/workflows/maven.yml
@@ -14,7 +14,7 @@ jobs:
         distribution: [ 'temurin' ]
         java: [ '21' ]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Setup Java 21
         uses: actions/setup-java@v4