diff --git a/actions/helm/generate-docs/package-lock.json b/actions/helm/generate-docs/package-lock.json
index d7003465..19340aa1 100644
--- a/actions/helm/generate-docs/package-lock.json
+++ b/actions/helm/generate-docs/package-lock.json
@@ -7,7 +7,7 @@
       "dependencies": {
         "@textlint/textlint-plugin-markdown": "^15.5.0",
         "markdownlint-cli2": "^0.20.0",
-        "prettier": "^3.7.4",
+        "prettier": "^3.8.0",
         "textlint": "^15.5.0",
         "textlint-filter-rule-comments": "^1.3.0",
         "textlint-rule-terminology": "^5.2.16"
@@ -3244,9 +3244,9 @@
       }
     },
     "node_modules/prettier": {
-      "version": "3.7.4",
-      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.7.4.tgz",
-      "integrity": "sha512-v6UNi1+3hSlVvv8fSaoUbggEM5VErKmmpGA7Pl3HF8V6uKY7rvClBOJlH6yNwQtfTueNkGVpOv/mtWL9L4bgRA==",
+      "version": "3.8.0",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.8.0.tgz",
+      "integrity": "sha512-yEPsovQfpxYfgWNhCfECjG5AQaO+K3dp6XERmOepyPDVqcJm+bjyCVO3pmU+nAPe0N5dDvekfGezt/EIiRe1TA==",
       "license": "MIT",
       "bin": {
         "prettier": "bin/prettier.cjs"
diff --git a/actions/helm/generate-docs/package.json b/actions/helm/generate-docs/package.json
index 4221e11b..9e3ced7a 100644
--- a/actions/helm/generate-docs/package.json
+++ b/actions/helm/generate-docs/package.json
@@ -2,7 +2,7 @@
   "dependencies": {
     "@textlint/textlint-plugin-markdown": "^15.5.0",
     "markdownlint-cli2": "^0.20.0",
-    "prettier": "^3.7.4",
+    "prettier": "^3.8.0",
     "textlint": "^15.5.0",
     "textlint-filter-rule-comments": "^1.3.0",
     "textlint-rule-terminology": "^5.2.16"