diff --git a/package.json b/package.json
index c3579b04..795c001e 100644
--- a/package.json
+++ b/package.json
@@ -42,7 +42,7 @@
     "mocha": "^10.8.2",
     "nyc": "^15",
     "oclif": "^4.23.21",
-    "prettier": "^3.8.4",
+    "prettier": "^3.9.1",
     "shx": "^0.4.0",
     "sinon": "^18.0.1",
     "ts-node": "^10.9.2",
diff --git a/yarn.lock b/yarn.lock
index 6798fb79..39facef1 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5999,10 +5999,10 @@ prelude-ls@^1.2.1:
   resolved "https://registry.npmjs.org/prelude-ls/-/prelude-ls-1.2.1.tgz#debc6489d7a6e6b0e7611888cec880337d316396"
   integrity sha512-vkcDPrRZo1QZLbn5RLGPpg/WmIQ65qoWWhcGKf/b5eplkkarX0m9z8ppCat4mlOqUsWpyNuYgO3VRyrYHSzX5g==
 
-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@^3.9.1:
+  version "3.9.1"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-3.9.1.tgz#5868bcf16456bfe145ddbfa107c623b6f39e332c"
+  integrity sha512-ppiDo2CSwexck1eyZUwJHg/N3nf1+6IRCv7W/VJ5vaLnVCmB7+3CdRfMwoCHBBX6xTrREDTksZ4OZl5SSf4zXA==
 
 process-on-spawn@^1.0.0:
   version "1.0.0"