diff --git a/.github/workflows/docker_release.yml b/.github/workflows/docker_release.yml
index 5e145618ae..866d847b4a 100644
--- a/.github/workflows/docker_release.yml
+++ b/.github/workflows/docker_release.yml
@@ -22,7 +22,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3
diff --git a/.github/workflows/docs-website-test-docs-snippets.yml b/.github/workflows/docs-website-test-docs-snippets.yml
index 3492be7390..c81c32deb5 100644
--- a/.github/workflows/docs-website-test-docs-snippets.yml
+++ b/.github/workflows/docs-website-test-docs-snippets.yml
@@ -29,7 +29,7 @@ jobs:
       OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Setup Python
         uses: actions/setup-python@v6
diff --git a/.github/workflows/docs-website-vale.yml b/.github/workflows/docs-website-vale.yml
index a55bdf1bdd..43e678b941 100644
--- a/.github/workflows/docs-website-vale.yml
+++ b/.github/workflows/docs-website-vale.yml
@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Setup Node.js
         uses: actions/setup-node@v6
diff --git a/.github/workflows/docstring_labeler.yml b/.github/workflows/docstring_labeler.yml
index bb4b3cf5d4..2e10510e36 100644
--- a/.github/workflows/docstring_labeler.yml
+++ b/.github/workflows/docstring_labeler.yml
@@ -14,7 +14,7 @@ jobs:
 
     steps:
       - name: Checkout base commit
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: ${{ github.base_ref }}
 
@@ -36,7 +36,7 @@ jobs:
           echo "checksum=$CHECKSUM" >> "$GITHUB_OUTPUT"
 
       - name: Checkout HEAD commit
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: ${{ github.event.pull_request.head.ref }}
           # This must be set to correctly checkout a fork
diff --git a/.github/workflows/docusaurus_sync.yml b/.github/workflows/docusaurus_sync.yml
index f5c291339a..6b367e8022 100644
--- a/.github/workflows/docusaurus_sync.yml
+++ b/.github/workflows/docusaurus_sync.yml
@@ -22,7 +22,7 @@ jobs:
 
     steps:
       - name: Checkout Haystack repo
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Set up Python
         uses: actions/setup-python@v6
diff --git a/.github/workflows/e2e.yml b/.github/workflows/e2e.yml
index 03c75de21d..bdf7670f0f 100644
--- a/.github/workflows/e2e.yml
+++ b/.github/workflows/e2e.yml
@@ -27,7 +27,7 @@ jobs:
     timeout-minutes: 60
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
 
     - uses: actions/setup-python@v6
       with:
diff --git a/.github/workflows/github_release.yml b/.github/workflows/github_release.yml
index 45f8d3a1d3..9529827acb 100644
--- a/.github/workflows/github_release.yml
+++ b/.github/workflows/github_release.yml
@@ -13,7 +13,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-tags: true
           fetch-depth: 0  # slow but needed by reno
diff --git a/.github/workflows/license_compliance.yml b/.github/workflows/license_compliance.yml
index 6b534f5ec3..ec5d969cfd 100644
--- a/.github/workflows/license_compliance.yml
+++ b/.github/workflows/license_compliance.yml
@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout the code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Setup Python
         uses: actions/setup-python@v6
diff --git a/.github/workflows/minor_version_release.yml b/.github/workflows/minor_version_release.yml
index 1a60a942c8..be2c185855 100644
--- a/.github/workflows/minor_version_release.yml
+++ b/.github/workflows/minor_version_release.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout this repo
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: main
 
diff --git a/.github/workflows/promote_unstable_docs.yml b/.github/workflows/promote_unstable_docs.yml
index 7987e68630..0d479b977e 100644
--- a/.github/workflows/promote_unstable_docs.yml
+++ b/.github/workflows/promote_unstable_docs.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout this repo
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         # use VERSION.txt file from main branch
         with:
           ref: main
diff --git a/.github/workflows/push_release_notes_to_website.yml b/.github/workflows/push_release_notes_to_website.yml
index 5f31cfe89e..4f394f7fca 100644
--- a/.github/workflows/push_release_notes_to_website.yml
+++ b/.github/workflows/push_release_notes_to_website.yml
@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Haystack home repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: deepset-ai/haystack-home
 
diff --git a/.github/workflows/pypi_release.yml b/.github/workflows/pypi_release.yml
index 0daea75466..f81e464033 100644
--- a/.github/workflows/pypi_release.yml
+++ b/.github/workflows/pypi_release.yml
@@ -16,7 +16,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Install Hatch
         run: pip install hatch==${{ env.HATCH_VERSION }}
diff --git a/.github/workflows/readme_sync.yml b/.github/workflows/readme_sync.yml
index cdefd0ec2e..af8051eabb 100644
--- a/.github/workflows/readme_sync.yml
+++ b/.github/workflows/readme_sync.yml
@@ -22,7 +22,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout this repo
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Set up Python
         uses: actions/setup-python@v6
diff --git a/.github/workflows/release_notes.yml b/.github/workflows/release_notes.yml
index b877776c5b..320721c9df 100644
--- a/.github/workflows/release_notes.yml
+++ b/.github/workflows/release_notes.yml
@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           # With the default value of 1, there are corner cases where tj-actions/changed-files
           # fails with a `no merge base` error
diff --git a/.github/workflows/slow.yml b/.github/workflows/slow.yml
index a50244bdd2..bf77db715b 100644
--- a/.github/workflows/slow.yml
+++ b/.github/workflows/slow.yml
@@ -47,7 +47,7 @@ jobs:
     outputs:
       changes: ${{ steps.changes.outputs.changes }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Check for changed code
         id: changes
         uses: dorny/paths-filter@v3
@@ -125,7 +125,7 @@ jobs:
             install_cmd: "echo 'No additional dependencies needed'"
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-python@v6
         with:
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 5c5f31711f..b3a5f41ef6 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -39,7 +39,7 @@ jobs:
   format:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-python@v6
         with:
@@ -89,7 +89,7 @@ jobs:
     needs: format
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-python@v6
         with:
@@ -145,7 +145,7 @@ jobs:
           - macos-latest
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-python@v6
         with:
@@ -213,7 +213,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           # With the default value of 1, there are corner cases where tj-actions/changed-files
           # fails with a `no merge base` error
@@ -289,7 +289,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-python@v6
         with:
@@ -346,7 +346,7 @@ jobs:
       HAYSTACK_MPS_ENABLED: false
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-python@v6
         with:
@@ -409,7 +409,7 @@ jobs:
       HAYSTACK_XPU_ENABLED: false
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-python@v6
         with:
diff --git a/.github/workflows/tests_skipper_trigger.yml b/.github/workflows/tests_skipper_trigger.yml
index 5914c4df99..79bcc63292 100644
--- a/.github/workflows/tests_skipper_trigger.yml
+++ b/.github/workflows/tests_skipper_trigger.yml
@@ -27,7 +27,7 @@ jobs:
     outputs:
       code_changes: ${{ steps.changes.outputs.code_changes }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Check for changed code
         id: changes
         uses: dorny/paths-filter@de90cc6fb38fc0963ad72b210f1f284cd68cea36
diff --git a/.github/workflows/workflows_linting.yml b/.github/workflows/workflows_linting.yml
index cfa92d6313..b2d04bd926 100644
--- a/.github/workflows/workflows_linting.yml
+++ b/.github/workflows/workflows_linting.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - uses: actions/setup-go@v6