diff --git a/package-lock.json b/package-lock.json
index 6b08c1c8..74f5e2ea 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "egon",
-  "version": "3.2.1",
+  "version": "4.0.0-dev",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "egon",
-      "version": "3.2.1",
+      "version": "4.0.0-dev",
       "dependencies": {
         "@angular/animations": "^21.2.13",
         "@angular/cdk": "^21.2.13",
@@ -48,7 +48,7 @@
         "karma-jasmine-html-reporter": "^2.1.0",
         "ng-mocks": "^14.14.0",
         "node-polyfill-webpack-plugin": "^4.1.0",
-        "prettier": "^3.7.3",
+        "prettier": "^3.9.4",
         "ts-archlint": "^0.23.0",
         "ts-node": "^10.9.2",
         "typescript": "^5.9.3",
@@ -14398,9 +14398,9 @@
       }
     },
     "node_modules/prettier": {
-      "version": "3.8.3",
-      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.8.3.tgz",
-      "integrity": "sha512-7igPTM53cGHMW8xWuVTydi2KO233VFiTNyF5hLJqpilHfmn8C8gPf+PS7dUT64YcXFbiMGZxS9pCSxL/Dxm/Jw==",
+      "version": "3.9.4",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.9.4.tgz",
+      "integrity": "sha512-yWG/o/4oJfo036EKAfK6ACAoDOfHeRHx4tuxkfBZiauURiaSmYwlpOr5LQqKtIkRD2z1PLteme2WoxEnj4tHTg==",
       "dev": true,
       "license": "MIT",
       "bin": {
diff --git a/package.json b/package.json
index e724ce2c..49cc03cd 100644
--- a/package.json
+++ b/package.json
@@ -54,7 +54,7 @@
     "karma-jasmine-html-reporter": "^2.1.0",
     "ng-mocks": "^14.14.0",
     "node-polyfill-webpack-plugin": "^4.1.0",
-    "prettier": "^3.7.3",
+    "prettier": "^3.9.4",
     "ts-archlint": "^0.23.0",
     "ts-node": "^10.9.2",
     "typescript": "^5.9.3",