diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index e223fcf..fed19a1 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -25,7 +25,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7
 
       - name: Setup JDK 21
         uses: actions/setup-java@v5
diff --git a/.github/workflows/javadoc.yml b/.github/workflows/javadoc.yml
index 0d92445..d02f9db 100644
--- a/.github/workflows/javadoc.yml
+++ b/.github/workflows/javadoc.yml
@@ -12,7 +12,7 @@ jobs:
     
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7
       
       - name: Setup JDK 21
         uses: actions/setup-java@v5
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index e6fef6f..5dc3f91 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -17,7 +17,7 @@ jobs:
         run: sudo apt-get install -y libncurses-dev
 
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7
 
       - name: Setup JDK 21
         uses: actions/setup-java@v5
diff --git a/.github/workflows/multi-platform.yml b/.github/workflows/multi-platform.yml
index 428812f..e1c030a 100644
--- a/.github/workflows/multi-platform.yml
+++ b/.github/workflows/multi-platform.yml
@@ -19,7 +19,7 @@ jobs:
     
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7
       
       - name: Install ncurses (Ubuntu)
         if: runner.os == 'Linux'
diff --git a/.github/workflows/quality-gate.yml b/.github/workflows/quality-gate.yml
index 10eca2c..cd50151 100644
--- a/.github/workflows/quality-gate.yml
+++ b/.github/workflows/quality-gate.yml
@@ -20,7 +20,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7
         with:
           fetch-depth: 0  # Full history for better analysis
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 793bf92..e2b1b3f 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -14,7 +14,7 @@ jobs:
     
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7
       
       - name: Setup JDK 21
         uses: actions/setup-java@v5
diff --git a/.github/workflows/secrets.yml b/.github/workflows/secrets.yml
index 0bfb405..f508c60 100644
--- a/.github/workflows/secrets.yml
+++ b/.github/workflows/secrets.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7
         with:
           fetch-depth: 0