diff --git a/.github/dependabot.yaml b/.github/dependabot.yaml
index 0264c03..8fd9b7f 100644
--- a/.github/dependabot.yaml
+++ b/.github/dependabot.yaml
@@ -1,3 +1,7 @@
+# This file is automatically synced from:
+# https://github.com/autowarefoundation/sync-file-templates
+# To make changes, update the source repository and follow the guidelines in its README.
+
 version: 2
 updates:
   - package-ecosystem: github-actions
diff --git a/.github/workflows/semantic-pull-request.yaml b/.github/workflows/semantic-pull-request.yaml
index 71224c2..b56040b 100644
--- a/.github/workflows/semantic-pull-request.yaml
+++ b/.github/workflows/semantic-pull-request.yaml
@@ -1,3 +1,7 @@
+# This file is automatically synced from:
+# https://github.com/autowarefoundation/sync-file-templates
+# To make changes, update the source repository and follow the guidelines in its README.
+
 name: semantic-pull-request
 
 on:
diff --git a/.github/workflows/spell-check-differential.yaml b/.github/workflows/spell-check-differential.yaml
index f030a45..e3af432 100644
--- a/.github/workflows/spell-check-differential.yaml
+++ b/.github/workflows/spell-check-differential.yaml
@@ -1,3 +1,7 @@
+# This file is automatically synced from:
+# https://github.com/autowarefoundation/sync-file-templates
+# To make changes, update the source repository and follow the guidelines in its README.
+
 name: spell-check-differential
 
 on:
@@ -13,4 +17,7 @@ jobs:
       - name: Run spell-check
         uses: autowarefoundation/autoware-github-actions/spell-check@v1
         with:
-          cspell-json-url: https://raw.githubusercontent.com/tier4/autoware-spell-check-dict/main/.cspell.json
+          cspell-json-url: https://raw.githubusercontent.com/autowarefoundation/autoware-spell-check-dict/main/.cspell.json
+          dict-packages: |
+            https://github.com/autowarefoundation/autoware-spell-check-dict
+            https://github.com/tier4/cspell-dicts
diff --git a/.github/workflows/sync-files.yaml b/.github/workflows/sync-files.yaml
index 0cffbcd..9224c15 100644
--- a/.github/workflows/sync-files.yaml
+++ b/.github/workflows/sync-files.yaml
@@ -1,3 +1,7 @@
+# This file is automatically synced from:
+# https://github.com/autowarefoundation/sync-file-templates
+# To make changes, update the source repository and follow the guidelines in its README.
+
 name: sync-files
 
 on:
diff --git a/.markdownlint.yaml b/.markdownlint.yaml
index 7b7359f..584154b 100644
--- a/.markdownlint.yaml
+++ b/.markdownlint.yaml
@@ -1,3 +1,7 @@
+# This file is automatically synced from:
+# https://github.com/autowarefoundation/sync-file-templates
+# To make changes, update the source repository and follow the guidelines in its README.
+
 # See https://github.com/DavidAnson/markdownlint/blob/main/doc/Rules.md for all rules.
 default: true
 MD013: false
diff --git a/.prettierrc.yaml b/.prettierrc.yaml
index e29bf32..fe47693 100644
--- a/.prettierrc.yaml
+++ b/.prettierrc.yaml
@@ -1,3 +1,7 @@
+# This file is automatically synced from:
+# https://github.com/autowarefoundation/sync-file-templates
+# To make changes, update the source repository and follow the guidelines in its README.
+
 printWidth: 100
 tabWidth: 2
 overrides:
diff --git a/.yamllint.yaml b/.yamllint.yaml
index 2c7bd08..e0be62d 100644
--- a/.yamllint.yaml
+++ b/.yamllint.yaml
@@ -1,3 +1,7 @@
+# This file is automatically synced from:
+# https://github.com/autowarefoundation/sync-file-templates
+# To make changes, update the source repository and follow the guidelines in its README.
+
 extends: default
 
 ignore: |