diff --git a/Contacts.Application/Contacts.Application.csproj b/Contacts.Application/Contacts.Application.csproj
index 1e5f44d..8fa8efc 100644
--- a/Contacts.Application/Contacts.Application.csproj
+++ b/Contacts.Application/Contacts.Application.csproj
@@ -7,7 +7,7 @@
     <ItemGroup>
       <PackageReference Include="AutoMapper" Version="15.0.1" />
       <PackageReference Include="FluentValidation" Version="12.0.0" />
-      <PackageReference Include="MediatR" Version="12.5.0" />
+      <PackageReference Include="MediatR" Version="13.1.0" />
       <PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
     </ItemGroup>
 
diff --git a/Contacts.Domain/Contacts.Domain.csproj b/Contacts.Domain/Contacts.Domain.csproj
index b89bf78..de02701 100644
--- a/Contacts.Domain/Contacts.Domain.csproj
+++ b/Contacts.Domain/Contacts.Domain.csproj
@@ -5,7 +5,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="MediatR" Version="12.5.0" />
+    <PackageReference Include="MediatR" Version="13.1.0" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
   </ItemGroup>
 
diff --git a/Contacts.Tests/Contacts.Tests.csproj b/Contacts.Tests/Contacts.Tests.csproj
index 7bac47e..7e3f467 100644
--- a/Contacts.Tests/Contacts.Tests.csproj
+++ b/Contacts.Tests/Contacts.Tests.csproj
@@ -8,7 +8,7 @@
 
   <ItemGroup>
     <PackageReference Include="FluentValidation" Version="12.0.0" />
-    <PackageReference Include="MediatR" Version="12.5.0" />
+    <PackageReference Include="MediatR" Version="13.1.0" />
     <PackageReference Include="Microsoft.Azure.Cosmos" Version="3.54.0" />
     <PackageReference Include="Microsoft.Extensions.Configuration" Version="9.0.10" />
     <PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="9.0.10" />