diff --git a/backend/src/Agon.Api/Agon.Api.csproj b/backend/src/Agon.Api/Agon.Api.csproj
index c40f3dd0..f08ccfbb 100644
--- a/backend/src/Agon.Api/Agon.Api.csproj
+++ b/backend/src/Agon.Api/Agon.Api.csproj
@@ -9,7 +9,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="9.0.15" />
     <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="9.0.15" />
-    <PackageReference Include="Microsoft.Agents.AI" Version="1.3.0" />
+    <PackageReference Include="Microsoft.Agents.AI" Version="1.5.0" />
     <PackageReference Include="Microsoft.Agents.AI.OpenAI" Version="1.3.0" />
     <PackageReference Include="Anthropic" Version="12.17.0" />
     <PackageReference Include="Anthropic.Foundry" Version="0.5.0" />
diff --git a/backend/src/Agon.Application/Agon.Application.csproj b/backend/src/Agon.Application/Agon.Application.csproj
index 0a869552..68e82b19 100644
--- a/backend/src/Agon.Application/Agon.Application.csproj
+++ b/backend/src/Agon.Application/Agon.Application.csproj
@@ -6,7 +6,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="10.0.7" />
-    <PackageReference Include="Microsoft.Agents.AI" Version="1.3.0" />
+    <PackageReference Include="Microsoft.Agents.AI" Version="1.5.0" />
   <PackageReference Include="System.Text.Json" Version="10.0.7" />
   </ItemGroup>
 
diff --git a/backend/src/Agon.Infrastructure/Agon.Infrastructure.csproj b/backend/src/Agon.Infrastructure/Agon.Infrastructure.csproj
index 23ef5028..344e6897 100644
--- a/backend/src/Agon.Infrastructure/Agon.Infrastructure.csproj
+++ b/backend/src/Agon.Infrastructure/Agon.Infrastructure.csproj
@@ -16,7 +16,7 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.Agents.AI" Version="1.3.0" />
+    <PackageReference Include="Microsoft.Agents.AI" Version="1.5.0" />
     <PackageReference Include="Microsoft.Extensions.AI.OpenAI" Version="9.0.1-preview.1.25179.4" />
     <PackageReference Include="Anthropic.SDK" Version="0.2.3" />
     <PackageReference Include="Azure.Identity" Version="1.21.0" />