diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 08fd7d60b2..7461b3ba78 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -85,7 +85,7 @@ jobs:
       variants: ${{ matrix.configuration }}
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: ${{ github.event.pull_request.head.sha || github.sha }}
 
@@ -94,14 +94,14 @@ jobs:
         with:
           python-version: "3.11"
       - name: Checkout build variables
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: secondlife/build-variables
           ref: master
           path: .build-variables
 
       - name: Checkout master-message-template
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: secondlife/master-message-template
           path: .master-message-template
diff --git a/.github/workflows/build_sl_mac_only.yml b/.github/workflows/build_sl_mac_only.yml
index 3f6eb5875c..db78364432 100644
--- a/.github/workflows/build_sl_mac_only.yml
+++ b/.github/workflows/build_sl_mac_only.yml
@@ -56,7 +56,7 @@ jobs:
           echo "/usr/local/bin" >> $GITHUB_PATH
           echo "$(brew --prefix)/opt/gnu-sed/libexec/gnubin" >> $GITHUB_PATH
 
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       # Use apt-based Python when inside the Ubuntu 22.04 container
       - name: Install Python 3.11 (container case)
         if: matrix.container_image == 'ubuntu:22.04'
@@ -183,12 +183,12 @@ jobs:
         shell: bash
     
       - name: Get the code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
       - name: Checkout build vars (after the main code)
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: FirestormViewer/fs-build-variables
           path: build-variables
@@ -519,7 +519,7 @@ jobs:
     if: always()
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           sparse-checkout: |
             fsutils/download_list.py
diff --git a/.github/workflows/build_viewer.yml b/.github/workflows/build_viewer.yml
index 8fe74f33b9..d2581ca226 100644
--- a/.github/workflows/build_viewer.yml
+++ b/.github/workflows/build_viewer.yml
@@ -58,7 +58,7 @@ jobs:
           echo "/usr/local/bin" >> $GITHUB_PATH
           echo "$(brew --prefix)/opt/gnu-sed/libexec/gnubin" >> $GITHUB_PATH
 
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       # Use apt-based Python when inside the Ubuntu 22.04 container
       - name: Install Python 3.11 (container case)
         if: matrix.container_image == 'ubuntu:22.04'
@@ -185,12 +185,12 @@ jobs:
         shell: bash
     
       - name: Get the code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
       - name: Checkout build vars (after the main code)
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: FirestormViewer/fs-build-variables
           path: build-variables
@@ -521,7 +521,7 @@ jobs:
     if: always()
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           sparse-checkout: |
             fsutils/download_list.py
diff --git a/.github/workflows/deploy_only.yml b/.github/workflows/deploy_only.yml
index 8cd0e08e89..1e68a5b3a3 100644
--- a/.github/workflows/deploy_only.yml
+++ b/.github/workflows/deploy_only.yml
@@ -31,7 +31,7 @@ jobs:
       contents: read
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           sparse-checkout: |
             fsutils/download_list.py
diff --git a/.github/workflows/pre-commit.yaml b/.github/workflows/pre-commit.yaml
index 8f942fa11b..93bcafdea8 100644
--- a/.github/workflows/pre-commit.yaml
+++ b/.github/workflows/pre-commit.yaml
@@ -11,7 +11,7 @@ jobs:
   pre-commit:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v6
         with:
           python-version: 3.x
diff --git a/.github/workflows/tag-fs-build.yml b/.github/workflows/tag-fs-build.yml
index 5192eacbc5..4b13f25ef4 100644
--- a/.github/workflows/tag-fs-build.yml
+++ b/.github/workflows/tag-fs-build.yml
@@ -50,7 +50,7 @@ jobs:
     steps:
       # Checkout the Repository
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0  # Necessary to fetch all history for tagging