diff --git a/.github/workflows/build_rust.yml b/.github/workflows/build_rust.yml
index 408ae55fe8f3d..b256091c28d07 100644
--- a/.github/workflows/build_rust.yml
+++ b/.github/workflows/build_rust.yml
@@ -47,7 +47,7 @@ jobs:
           echo "PR_BRANCH=`jq -r '.head.ref' <<<$pr_json`" >> $GITHUB_ENV
           echo "PR_HEAD_LABEL=`jq -r '.head.label' <<<$pr_json`" >> $GITHUB_ENV
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           repository: ${{ env.PR_REPO }}
           ref: ${{ env.PR_BRANCH }}
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2f419221e2a39..819993cea8f65 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,7 +13,7 @@ jobs:
     name: Run Linters
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Setup Cache
         uses: actions/cache@v4
@@ -66,7 +66,7 @@ jobs:
     name: Lint with OpenDream
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Setup OD
         run: |
           bash tools/ci/setup_od.sh
@@ -86,7 +86,7 @@ jobs:
       matrix:
         byondtype: ['STABLE']
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Restore BYOND from Cache
         uses: ./.github/actions/restore_or_install_byond
         with:
@@ -108,7 +108,7 @@ jobs:
         station: ['boxstation', 'deltastation', 'metastation', 'cerestation', 'emeraldstation']
         byondtype: ['STABLE']
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Restore BYOND from Cache
         uses: ./.github/actions/restore_or_install_byond
         with:
@@ -135,7 +135,7 @@ jobs:
       matrix:
         byondtype: ['STABLE']
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Restore BYOND from Cache
         uses: ./.github/actions/restore_or_install_byond
         with:
@@ -163,7 +163,7 @@ jobs:
     name: Windows RUSTG Validation
     runs-on: windows-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v5
         with:
           python-version: '3.8.2' # Script was made for 3.8.2
diff --git a/.github/workflows/devdocs.yml b/.github/workflows/devdocs.yml
index 4baa9e38f51aa..7f7f3454a6648 100644
--- a/.github/workflows/devdocs.yml
+++ b/.github/workflows/devdocs.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     name: Build and Deploy
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Build docs
         run: |
diff --git a/.github/workflows/dmi5.yml b/.github/workflows/dmi5.yml
index 5c249f49f4f53..c02073e453e18 100644
--- a/.github/workflows/dmi5.yml
+++ b/.github/workflows/dmi5.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - uses: ParadiseSS13/DMI5Checker@v1
       with:
         icons-path: 'icons'
diff --git a/.github/workflows/generate_autodoc.yml b/.github/workflows/generate_autodoc.yml
index 87f15047b9348..4b943bf752c3a 100644
--- a/.github/workflows/generate_autodoc.yml
+++ b/.github/workflows/generate_autodoc.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
     - name: 'Update Branch'
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
       with:
         fetch-depth: 1
         ref: master
diff --git a/.github/workflows/merge_upstream_master.yml b/.github/workflows/merge_upstream_master.yml
index 410710a4b549f..73dc4c831dda9 100644
--- a/.github/workflows/merge_upstream_master.yml
+++ b/.github/workflows/merge_upstream_master.yml
@@ -47,7 +47,7 @@ jobs:
           echo "PR_BRANCH=`jq -r '.head.ref' <<<$pr_json`" >> $GITHUB_ENV
           echo "PR_HEAD_LABEL=`jq -r '.head.label' <<<$pr_json`" >> $GITHUB_ENV
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           repository: ${{ env.PR_REPO }}
           ref: ${{ env.PR_BRANCH }}
diff --git a/.github/workflows/render_nanomaps.yml b/.github/workflows/render_nanomaps.yml
index fb46092eb706b..3bbdaf4d09652 100644
--- a/.github/workflows/render_nanomaps.yml
+++ b/.github/workflows/render_nanomaps.yml
@@ -23,7 +23,7 @@ jobs:
       - run: echo "GH_TOKEN=${{ steps.create_token.outputs.token }}" >> "$GITHUB_ENV"
 
       - name: 'Update Branch'
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           token: ${{ steps.create_token.outputs.token }}