diff --git a/package.json b/package.json
index ae9dd0f..f22ba48 100644
--- a/package.json
+++ b/package.json
@@ -45,7 +45,7 @@
     "gh-pages": "^6.0.0",
     "husky": "^9.0.0",
     "madge": "^6.0.0",
-    "prettier": "^2.7.1",
+    "prettier": "^3.0.0",
     "rimraf": "^5.0.0",
     "sinon": "^17.0.0",
     "ts-lit-plugin": "^2.0.0",
diff --git a/yarn.lock b/yarn.lock
index 389bb3c..dfbea80 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4465,10 +4465,10 @@ prelude-ls@~1.1.2:
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
   integrity sha512-ESF23V4SKG6lVSGZgYNpbsiaAkdab6ZgOxe52p7+Kid3W3u3bxR4Vfd/o21dmN7jSt0IwgZ4v5MUd26FEtXE9w==
 
-prettier@^2.7.1:
-  version "2.7.1"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.7.1.tgz#e235806850d057f97bb08368a4f7d899f7760c64"
-  integrity sha512-ujppO+MkdPqoVINuDFDRLClm7D78qbDt0/NR+wp5FqEZOoTNAjPHWj17QRhu7geIHJfcNhRk1XVQmF8Bp3ye+g==
+prettier@^3.0.0:
+  version "3.4.2"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-3.4.2.tgz#a5ce1fb522a588bf2b78ca44c6e6fe5aa5a2b13f"
+  integrity sha512-e9MewbtFo+Fevyuxn/4rrcDAaq0IYxPGLvObpQjiZBMAzB9IGmzlnG9RZy3FFas+eBMu2vA0CszMeduow5dIuQ==
 
 pretty-ms@^7.0.1:
   version "7.0.1"