diff --git a/app/Http/Controllers/PostController.php b/app/Http/Controllers/PostController.php
index cd0808b7..c265abb2 100644
--- a/app/Http/Controllers/PostController.php
+++ b/app/Http/Controllers/PostController.php
@@ -12,6 +12,9 @@ public function store(Request $request)
         $request->validate(
             // ... TASK: write validation here so that "title" field
             //           would be required and unique in the "posts" DB table
+            [
+                'title' => ['required', 'unique:posts']
+            ]
         );
 
         // Saving the post
@@ -19,4 +22,4 @@ public function store(Request $request)
 
         return 'Success';
     }
-}
+}
\ No newline at end of file
diff --git a/app/Http/Controllers/ProfileController.php b/app/Http/Controllers/ProfileController.php
index bb6bab39..23b75790 100644
--- a/app/Http/Controllers/ProfileController.php
+++ b/app/Http/Controllers/ProfileController.php
@@ -13,10 +13,12 @@ public function update(Request $request)
             // <input name="profile[name]" ... />
             // <input name="profile[email]" ... />
             // Write validation rules, so both name and email are required
+            'profile.name' => ['required'],
+            'profile.email' => ['required']
         ]);
 
         auth()->user()->update($request->profile ?? []);
 
         return 'Success';
     }
-}
+}
\ No newline at end of file
diff --git a/app/Http/Controllers/UserController.php b/app/Http/Controllers/UserController.php
index 404d7471..fd2a50f2 100644
--- a/app/Http/Controllers/UserController.php
+++ b/app/Http/Controllers/UserController.php
@@ -11,8 +11,8 @@ public function update(User $user, UpdateUserRequest $request)
     {
         // TASK: change this line to not allow is_admin field to be updated
         // Update only the fields that are validated in UpdateUserRequest
-        $user->update($request->all());
+        $user->update($request->safe()->except(['is_admin']));
 
         return 'Success';
     }
-}
+}
\ No newline at end of file
diff --git a/app/Http/Requests/StoreBuildingRequest.php b/app/Http/Requests/StoreBuildingRequest.php
index fbd8c064..09a7f1e4 100644
--- a/app/Http/Requests/StoreBuildingRequest.php
+++ b/app/Http/Requests/StoreBuildingRequest.php
@@ -27,7 +27,14 @@ public function authorize()
     public function rules()
     {
         return [
-            'name' => 'required'
+            'name' => ['required']
         ];
     }
-}
+
+    public function messages(): array
+    {
+        return [
+            'name.required' => 'Please enter the name'
+        ];
+    }
+}
\ No newline at end of file
diff --git a/app/Http/Requests/StoreItemRequest.php b/app/Http/Requests/StoreItemRequest.php
new file mode 100644
index 00000000..101ff708
--- /dev/null
+++ b/app/Http/Requests/StoreItemRequest.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace App\Http\Requests;
+
+use Illuminate\Foundation\Http\FormRequest;
+
+class StoreItemRequest extends FormRequest
+{
+    /**
+     * Determine if the user is authorized to make this request.
+     */
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    /**
+     * Get the validation rules that apply to the request.
+     *
+     * @return array<string, \Illuminate\Contracts\Validation\Rule|array|string>
+     */
+    public function rules(): array
+    {
+        return [
+            'name' => ['required'],
+            'description' => ['required']
+        ];
+    }
+}
\ No newline at end of file
diff --git a/app/Rules/Uppercase.php b/app/Rules/Uppercase.php
new file mode 100644
index 00000000..ac5a1999
--- /dev/null
+++ b/app/Rules/Uppercase.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Rules;
+
+use Closure;
+use Illuminate\Contracts\Validation\ValidationRule;
+
+class Uppercase implements ValidationRule
+{
+    /**
+     * Run the validation rule.
+     *
+     * @param  \Closure(string): \Illuminate\Translation\PotentiallyTranslatedString  $fail
+     */
+    public function validate(string $attribute, mixed $value, Closure $fail): void
+    {
+        if (ucfirst($value) !== $value) {
+            $fail('The :attribute does not start with an uppercased letter');
+        }
+    }
+}
diff --git a/resources/views/products/create.blade.php b/resources/views/products/create.blade.php
index 611b7ef6..b7f7a71c 100644
--- a/resources/views/products/create.blade.php
+++ b/resources/views/products/create.blade.php
@@ -6,9 +6,10 @@
     <br />
     {{-- TASK: show the validation error for the specific "name" field --}}
     {{-- using one Blade directive: pseudo-code below --}}
-    {{-- @directive --}}
-    {{-- {{ $message }} --}}
-    {{-- @endDirective --}}
+    @error('name')
+        {{ $message }}
+    @enderror
+
     <br /><br />
     <button type="submit">Save</button>
 </form>
diff --git a/resources/views/projects/create.blade.php b/resources/views/projects/create.blade.php
index dc19b63b..b3b17e3f 100644
--- a/resources/views/projects/create.blade.php
+++ b/resources/views/projects/create.blade.php
@@ -14,5 +14,14 @@
     <br />
     <input type="text" name="description" />
     <br /><br />
+    @if ($errors->any())
+        <div class="alert alert-danger">
+            <ul>
+                @foreach ($errors->all() as $error)
+                    <li>{{ $error }}</li>
+                @endforeach
+            </ul>
+        </div>
+    @endif
     <button type="submit">Save</button>
 </form>
diff --git a/resources/views/teams/create.blade.php b/resources/views/teams/create.blade.php
index 2d003c05..f1afdef2 100644
--- a/resources/views/teams/create.blade.php
+++ b/resources/views/teams/create.blade.php
@@ -3,7 +3,7 @@
     Name:
     <br />
     {{-- TASK: change this field so it would contain old value after validation error --}}
-    <input type="text" name="name" />
+    <input type="text" name="name" value="{{ old('name') }}" />
     <br /><br />
     <button type="submit">Save</button>
 </form>