diff --git a/src/MaksIT.Core/Abstractions/Webapi/PatchRequestModelBase.cs b/src/MaksIT.Core/Abstractions/Webapi/PatchRequestModelBase.cs
index fefe6c5..458094b 100644
--- a/src/MaksIT.Core/Abstractions/Webapi/PatchRequestModelBase.cs
+++ b/src/MaksIT.Core/Abstractions/Webapi/PatchRequestModelBase.cs
@@ -1,12 +1,19 @@
-using System.Reflection;
+using System.ComponentModel.DataAnnotations;
+using System.Reflection;
 using MaksIT.Core.Webapi.Models;
 
 
 namespace MaksIT.Core.Abstractions.Webapi;
 
-public abstract class PatchRequestModelBase : RequestModelBase {
-  public bool HasNonNullPatchField => GetType()
+public abstract class PatchRequestModelBase : RequestModelBase, IValidatableObject {
+  private bool HasNonNullPatchField => GetType()
     .GetProperties(BindingFlags.Public | BindingFlags.Instance)
     .Where(prop => prop.PropertyType.IsGenericType && prop.PropertyType.GetGenericTypeDefinition() == typeof(PatchField<>))
     .Any(prop => prop.GetValue(this) != null);
+
+  public virtual IEnumerable<ValidationResult> Validate(ValidationContext validationContext) {
+    if (!HasNonNullPatchField) {
+      yield return new ValidationResult("At least one patch field must be provided", new string[] { "PatchField" });
+    }
+  }
 }
diff --git a/src/MaksIT.Core/MaksIT.Core.csproj b/src/MaksIT.Core/MaksIT.Core.csproj
index b3ce5ad..2e889ad 100644
--- a/src/MaksIT.Core/MaksIT.Core.csproj
+++ b/src/MaksIT.Core/MaksIT.Core.csproj
@@ -8,7 +8,7 @@
 
     <!-- NuGet package metadata -->
     <PackageId>MaksIT.Core</PackageId>
-    <Version>1.2.0</Version>
+    <Version>1.2.1</Version>
     <Authors>Maksym Sadovnychyy</Authors>
     <Company>MAKS-IT</Company>
     <Product>MaksIT.Core</Product>