diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index a805260..727fe61 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -54,7 +54,7 @@ on:
       reviewdog_version:
         type: string
         # renovate: datasource=github-releases depName=reviewdog/reviewdog
-        default: v0.16.0
+        default: v0.21.0
       reviewdog_default_reporter:
         type: string
         default: github-pr-review
diff --git a/.github/workflows/check-coding-rule-v3.yml b/.github/workflows/check-coding-rule-v3.yml
index 0a16a16..acd17a6 100644
--- a/.github/workflows/check-coding-rule-v3.yml
+++ b/.github/workflows/check-coding-rule-v3.yml
@@ -22,7 +22,7 @@ on:
       reviewdog_version:
         type: string
         # renovate: datasource=github-releases depName=reviewdog/reviewdog
-        default: v0.16.0
+        default: v0.21.0
     secrets:
       GH_FEDERATION_ENDPOINT:
         required: false
diff --git a/.github/workflows/check-coding-rule.yml b/.github/workflows/check-coding-rule.yml
index a1193d2..675a1ea 100644
--- a/.github/workflows/check-coding-rule.yml
+++ b/.github/workflows/check-coding-rule.yml
@@ -18,7 +18,7 @@ on:
       reviewdog_version:
         type: string
         # renovate: datasource=github-releases depName=reviewdog/reviewdog
-        default: v0.16.0
+        default: v0.21.0
     secrets:
       GH_FEDERATION_ENDPOINT:
         required: false
diff --git a/.github/workflows/default-v3.yml b/.github/workflows/default-v3.yml
index c97c639..d1d9944 100644
--- a/.github/workflows/default-v3.yml
+++ b/.github/workflows/default-v3.yml
@@ -22,7 +22,7 @@ on:
       reviewdog_version:
         type: string
         # renovate: datasource=github-releases depName=reviewdog/reviewdog
-        default: v0.16.0
+        default: v0.21.0
     secrets:
       GH_FEDERATION_ENDPOINT:
         required: false
diff --git a/.github/workflows/default.yml b/.github/workflows/default.yml
index b13fb4a..68f95ed 100644
--- a/.github/workflows/default.yml
+++ b/.github/workflows/default.yml
@@ -22,7 +22,7 @@ on:
       reviewdog_version:
         type: string
         # renovate: datasource=github-releases depName=reviewdog/reviewdog
-        default: v0.16.0
+        default: v0.21.0
     secrets:
       GH_FEDERATION_ENDPOINT:
         required: false
diff --git a/action-c2a-build/action.yml b/action-c2a-build/action.yml
index 3aff738..162b7c9 100644
--- a/action-c2a-build/action.yml
+++ b/action-c2a-build/action.yml
@@ -35,7 +35,7 @@ inputs:
   reviewdog_version:
     type: string
     # renovate: datasource=github-releases depName=reviewdog/reviewdog
-    default: v0.16.0
+    default: v0.21.0
   reviewdog_tool_name:
     type: string
     default: clang-tidy