diff --git a/.github/workflows/backport.yml b/.github/workflows/backport.yml
index 2d2b5ff10a..0f3d3b6d2d 100644
--- a/.github/workflows/backport.yml
+++ b/.github/workflows/backport.yml
@@ -11,7 +11,7 @@ jobs:
     if: github.event.pull_request.merged
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - uses: actions/create-github-app-token@v2
         id: app-token
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 32dce9ed0b..701cdc7c2f 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -29,7 +29,7 @@ jobs:
       CMAKE_URL: 'https://cmake.org/files/v3.16/cmake-3.16.0-Linux-x86_64.sh'
       CMAKE_VERSION: '3.16.0'
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ./.github/actions/setup
 
       - name: Install minimum required version of cmake
@@ -58,7 +58,7 @@ jobs:
     name: Test USE_EXISTING_SRC_DIR=ON builds with no network access
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ./.github/actions/setup
 
       - name: Build bundled dependencies
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index d06b69f1ea..fcd8ef7736 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -22,7 +22,7 @@ jobs:
       security-events: write
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - uses: ./.github/actions/setup
 
     - name: Initialize CodeQL
diff --git a/.github/workflows/coverity.yml b/.github/workflows/coverity.yml
index a715cd2c96..10a934a5d6 100644
--- a/.github/workflows/coverity.yml
+++ b/.github/workflows/coverity.yml
@@ -8,7 +8,7 @@ jobs:
   scan:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ./.github/actions/setup
 
       - name: Download Coverity
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index bf1a4f8fd8..46bc0293e9 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -10,7 +10,7 @@ jobs:
       contents: write
       pull-requests: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ./.github/actions/setup
 
       - name: Generate docs
diff --git a/.github/workflows/labeler_pr.yml b/.github/workflows/labeler_pr.yml
index 508b28bf0e..f476b2fda8 100644
--- a/.github/workflows/labeler_pr.yml
+++ b/.github/workflows/labeler_pr.yml
@@ -9,7 +9,7 @@ jobs:
       contents: read
       pull-requests: write
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - uses: actions/labeler@v6
       with:
         configuration-path: .github/scripts/labeler_configuration.yml
diff --git a/.github/workflows/lintcommit.yml b/.github/workflows/lintcommit.yml
index 3e11af888f..560c980dd6 100644
--- a/.github/workflows/lintcommit.yml
+++ b/.github/workflows/lintcommit.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     if: github.event.pull_request.draft == false
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           ref: ${{ github.event.pull_request.head.sha }}
diff --git a/.github/workflows/lintdocurls.yml b/.github/workflows/lintdocurls.yml
index a7d3d542e7..243a81a73b 100644
--- a/.github/workflows/lintdocurls.yml
+++ b/.github/workflows/lintdocurls.yml
@@ -12,7 +12,7 @@ jobs:
     env:
       GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/news.yml b/.github/workflows/news.yml
index 06e41de42b..84e6c36b02 100644
--- a/.github/workflows/news.yml
+++ b/.github/workflows/news.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     if: github.event.pull_request.draft == false && !contains(github.event.pull_request.labels.*.name, 'ci:skip-news')
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           ref: ${{ github.event.pull_request.head.sha }}
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 13760ac992..2d7eb3bbf1 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -55,7 +55,7 @@ jobs:
     outputs:
       version: ${{ steps.build.outputs.version }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           # Perform a full checkout #13471
           fetch-depth: 0
@@ -101,7 +101,7 @@ jobs:
     env:
       MACOSX_DEPLOYMENT_TARGET: 11.0
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           # Perform a full checkout #13471
           fetch-depth: 0
@@ -143,7 +143,7 @@ jobs:
             archive_name: nvim-win-arm64
     runs-on: ${{ matrix.runner }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           # Perform a full checkout #13471
           fetch-depth: 0
@@ -183,7 +183,7 @@ jobs:
     steps:
       # Must perform checkout first, since it deletes the target directory
       # before running, and would therefore delete the downloaded artifacts
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - uses: actions/download-artifact@v6
 
diff --git a/.github/workflows/response.yml b/.github/workflows/response.yml
index c8bd0dbdb7..ad17381fd6 100644
--- a/.github/workflows/response.yml
+++ b/.github/workflows/response.yml
@@ -13,7 +13,7 @@ jobs:
       issues: write
       pull-requests: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/github-script@v8
         with:
           script: |
@@ -27,7 +27,7 @@ jobs:
       issues: write
       pull-requests: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/github-script@v8
         with:
           script: |
diff --git a/.github/workflows/reviewers_add.yml b/.github/workflows/reviewers_add.yml
index 441373e2fe..06292fb759 100644
--- a/.github/workflows/reviewers_add.yml
+++ b/.github/workflows/reviewers_add.yml
@@ -10,7 +10,7 @@ jobs:
     permissions:
       pull-requests: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: 'Request reviewers'
         uses: actions/github-script@v8
         with:
diff --git a/.github/workflows/reviewers_remove.yml b/.github/workflows/reviewers_remove.yml
index 45ddef0355..b4b523bd4d 100644
--- a/.github/workflows/reviewers_remove.yml
+++ b/.github/workflows/reviewers_remove.yml
@@ -8,7 +8,7 @@ jobs:
     permissions:
       pull-requests: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: 'Remove reviewers'
         uses: actions/github-script@v8
         with:
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index efbf94d8c8..3f928be860 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -33,7 +33,7 @@ jobs:
     env:
       CC: clang
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ./.github/actions/setup
 
       - name: Install stylua
@@ -87,7 +87,7 @@ jobs:
     env:
       CC: clang
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ./.github/actions/setup
       - name: Build third-party deps
         run: |
@@ -132,7 +132,7 @@ jobs:
       CC: ${{ matrix.build.cc }}
       NVIM_TEST_INTEG: ${{ matrix.build.flavor == 'release' && '1' || '0' }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ./.github/actions/setup
         with:
           install_flags: "--test"
@@ -210,7 +210,7 @@ jobs:
     timeout-minutes: 45
     name: build using zig build (linux)
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: mlugg/setup-zig@v2
         with:
           version: 0.15.2
@@ -230,7 +230,7 @@ jobs:
     timeout-minutes: 45
     name: build using zig build (macos 15)
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: mlugg/setup-zig@v2
         with:
           version: 0.15.2
@@ -244,7 +244,7 @@ jobs:
     timeout-minutes: 45
     name: build using zig build (windows)
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: mlugg/setup-zig@v2
         with:
           version: 0.15.2
@@ -264,7 +264,7 @@ jobs:
     env:
       CC: gcc
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ./.github/actions/setup
 
       - name: Install dependencies
diff --git a/.github/workflows/test_windows.yml b/.github/workflows/test_windows.yml
index 15f26e3dff..5a7b09ab3d 100644
--- a/.github/workflows/test_windows.yml
+++ b/.github/workflows/test_windows.yml
@@ -18,7 +18,7 @@ jobs:
       matrix:
         test: [functional, old]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ./.github/actions/setup
 
       - name: Build deps
diff --git a/.github/workflows/vim_patches.yml b/.github/workflows/vim_patches.yml
index f1d1bb7578..c2e2cac188 100644
--- a/.github/workflows/vim_patches.yml
+++ b/.github/workflows/vim_patches.yml
@@ -15,11 +15,11 @@ jobs:
       VERSION_BRANCH: marvim/ci-version-update
       GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           repository: vim/vim
           path: ${{ env.VIM_SOURCE_DIR }}