diff --git a/package.json b/package.json
index 0707925..6f7f2c4 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
     "@socialgouv/eslint-config-recommended": "1.122.0",
     "eslint": "7.32.0",
     "jest-cli": "28.1.3",
-    "prettier": "2.7.1"
+    "prettier": "3.4.0"
   },
   "eslintConfig": {
     "extends": [
diff --git a/yarn.lock b/yarn.lock
index af25c97..f16a1b3 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2706,10 +2706,10 @@ prettier-linter-helpers@^1.0.0:
   dependencies:
     fast-diff "^1.1.2"
 
-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@3.4.0:
+  version "3.4.0"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-3.4.0.tgz#9dcd5e617cf103db8e4bd00924baecfd32bf9971"
+  integrity sha512-/OXNZcLyWkfo13ofOW5M7SLh+k5pnIs07owXK2teFpnfaOEcycnSy7HQxldaVX1ZP/7Q8oO1eDuQJNwbomQq5Q==
 
 pretty-format@^28.1.3:
   version "28.1.3"