diff --git a/.eslintrc.json b/.eslintrc.json
index a66ee6f02..445d2d477 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -142,7 +142,6 @@
 
         // The following rules are part of @typescript-eslint/stylistic-type-checked
         // and can be remove once solved
-        "@typescript-eslint/prefer-function-type": "warn",
         "@typescript-eslint/prefer-nullish-coalescing": "warn", // TODO: Requires strictNullChecks: true
         "@typescript-eslint/consistent-type-assertions": "warn",
         "@typescript-eslint/prefer-optional-chain": "warn",
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7f39882a2..c4953202b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Switched the `consistent-type-definitions` rule from `warn` to `error` in the `eslint` configuration
 - Switched the `no-empty-function` rule from `warn` to `error` in the `eslint` configuration
+- Switched the `prefer-function-type` rule from `warn` to `error` in the `eslint` configuration
 
 ### Fixed
 
diff --git a/apps/client/src/app/util/form.util.ts b/apps/client/src/app/util/form.util.ts
index f629cc4a2..425aa4699 100644
--- a/apps/client/src/app/util/form.util.ts
+++ b/apps/client/src/app/util/form.util.ts
@@ -8,7 +8,7 @@ export async function validateObjectForForm<T>({
   ignoreFields = [],
   object
 }: {
-  classDto: { new (): T };
+  classDto: new () => T;
   form: FormGroup;
   ignoreFields?: string[];
   object: T;