diff --git a/package.json b/package.json
index 995f1a7..8b13841 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,7 @@
     "cspell": "8.19.4",
     "eclint": "2.8.1",
     "markdownlint-cli2": "0.13.0",
-    "prettier": "3.8.4"
+    "prettier": "3.9.5"
   },
   "scripts": {
     "verify-format": "yarn prettier-check && yarn eclint-check",
diff --git a/yarn.lock b/yarn.lock
index d25e2a5..5a77a8c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2078,10 +2078,10 @@ plugin-error@^1.0.1:
     arr-union "^3.1.0"
     extend-shallow "^3.0.2"
 
-prettier@3.8.4:
-  version "3.8.4"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-3.8.4.tgz#f334f013ac04a96676f24dabc23c1c4ae1bae411"
-  integrity sha512-N2MylSdi48+5N/6S5j+maeHbUSIzzZ5uOcX5Hm4QpV8Dkb1HFjfAKTKX6yNPJQD9AhcT3ifHNB66tWTTJDi11Q==
+prettier@3.9.5:
+  version "3.9.5"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-3.9.5.tgz#4fec97736e33b9d0b620b48914fe93b530e835ad"
+  integrity sha512-/FVl766LpUfB5vXgCYOYa0MeV/441Ia99AeICQIQFTY/Nw0roZwULcXpku5i1/m5kt/baz+s4Zogspd839HSMg==
 
 process-nextick-args@^2.0.0, process-nextick-args@~2.0.0:
   version "2.0.1"