diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index b1bb5fd76..d7ee106b5 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -35,7 +35,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
diff --git a/.github/workflows/maven.yml b/.github/workflows/maven.yml
index cfa2898e3..ccdd152b3 100644
--- a/.github/workflows/maven.yml
+++ b/.github/workflows/maven.yml
@@ -18,7 +18,7 @@ jobs:
     name: Test JDK ${{ matrix.java }}, ${{ matrix.os }}
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up JDK
         uses: actions/setup-java@v5
         with:
@@ -39,7 +39,7 @@ jobs:
     name: Test JDK ${{ matrix.java }}, ${{ matrix.os }}
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Configure pagefile
         uses: al-cheb/configure-pagefile-action@v1.5
         with:
diff --git a/.github/workflows/nightly-build.yml b/.github/workflows/nightly-build.yml
index 42e97ee49..16fac1716 100644
--- a/.github/workflows/nightly-build.yml
+++ b/.github/workflows/nightly-build.yml
@@ -13,7 +13,7 @@ jobs:
     if: github.repository == 'quickfix-j/quickfixj'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up JDK
         uses: actions/setup-java@v5
         with: