diff --git a/.github/workflows/dev-container.yml b/.github/workflows/dev-container.yml
index 587fcd02adda0c..f3ae7d2dcf951f 100644
--- a/.github/workflows/dev-container.yml
+++ b/.github/workflows/dev-container.yml
@@ -22,7 +22,7 @@ jobs:
     steps:
 
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Login to GitHub Container Registry
         uses: docker/login-action@v3
diff --git a/.github/workflows/label-pull-requests.yml b/.github/workflows/label-pull-requests.yml
index d7355d98eee6d7..ece52e3c0092d6 100644
--- a/.github/workflows/label-pull-requests.yml
+++ b/.github/workflows/label-pull-requests.yml
@@ -15,7 +15,7 @@ jobs:
     if: always() && github.repository == 'SerenityOS/serenity'
     
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Label pull request
         uses: actions/github-script@v8
diff --git a/.github/workflows/lagom-template.yml b/.github/workflows/lagom-template.yml
index faa3ab4f44fe46..ae3f07353d717e 100644
--- a/.github/workflows/lagom-template.yml
+++ b/.github/workflows/lagom-template.yml
@@ -31,10 +31,10 @@ jobs:
       # Pull requests can trail behind `master` and can cause breakage if merging before running the CI checks on an updated branch.
       # Luckily, GitHub creates and maintains a merge branch that is updated whenever the target or source branch is modified. By
       # checking this branch out, we gain a stabler `master` at the cost of reproducibility.
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         if: ${{ github.event_name != 'pull_request' }}
 
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         if: ${{ github.event_name == 'pull_request' }}
         with:
           ref: refs/pull/${{ github.event.pull_request.number }}/merge
diff --git a/.github/workflows/manpages.yml b/.github/workflows/manpages.yml
index 8c1eb881f54450..be410645df4767 100644
--- a/.github/workflows/manpages.yml
+++ b/.github/workflows/manpages.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-24.04
     if: always() && github.repository == 'SerenityOS/serenity' && github.ref == 'refs/heads/master'
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: r-lib/actions/setup-pandoc@v2
         with:
           pandoc-version: '2.13'
diff --git a/.github/workflows/serenity-template.yml b/.github/workflows/serenity-template.yml
index c54e528e4db52d..b367fd7dd0ba1a 100644
--- a/.github/workflows/serenity-template.yml
+++ b/.github/workflows/serenity-template.yml
@@ -36,10 +36,10 @@ jobs:
       # Pull requests can trail behind `master` and can cause breakage if merging before running the CI checks on an updated branch.
       # Luckily, GitHub creates and maintains a merge branch that is updated whenever the target or source branch is modified. By
       # checking this branch out, we gain a stabler `master` at the cost of reproducibility.
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         if: ${{ github.event_name != 'pull_request' }}
 
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         if: ${{ github.event_name == 'pull_request' }}
         with:
           ref: refs/pull/${{ github.event.pull_request.number }}/merge
diff --git a/.github/workflows/social-media.yml b/.github/workflows/social-media.yml
index 7c578354ef3e67..2428498e849dd6 100644
--- a/.github/workflows/social-media.yml
+++ b/.github/workflows/social-media.yml
@@ -8,7 +8,7 @@ jobs:
     if: always() && github.repository == 'SerenityOS/serenity' && github.ref == 'refs/heads/master'
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-node@v6
         with:
           node-version: '14'
@@ -28,7 +28,7 @@ jobs:
     if: always() && github.repository == 'SerenityOS/serenity' && github.ref == 'refs/heads/master'
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-node@v6
         with:
           node-version: '14'
diff --git a/.github/workflows/wasm.yml b/.github/workflows/wasm.yml
index 998c2aee29fe97..88625531299e26 100644
--- a/.github/workflows/wasm.yml
+++ b/.github/workflows/wasm.yml
@@ -15,10 +15,10 @@ jobs:
       fail-fast: false
     steps:
       - name: Checkout SerenityOS/serenity
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Checkout SerenityOS/libjs-data libjs-wasm
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: SerenityOS/libjs-data
           path: libjs-data