diff --git a/dotnet/Directory.Packages.props b/dotnet/Directory.Packages.props
index 8fedb11f7f..136aef5c68 100644
--- a/dotnet/Directory.Packages.props
+++ b/dotnet/Directory.Packages.props
@@ -56,15 +56,15 @@
     <PackageVersion Include="System.Threading.Tasks.Extensions" Version="4.6.3" />
     <PackageVersion Include="System.Net.Security" Version="4.3.2" />
     <!-- OpenTelemetry -->
-    <PackageVersion Include="OpenTelemetry" Version="1.15.0" />
-    <PackageVersion Include="OpenTelemetry.Api" Version="1.15.0" />
-    <PackageVersion Include="OpenTelemetry.Exporter.Console" Version="1.15.0" />
-    <PackageVersion Include="OpenTelemetry.Exporter.InMemory" Version="1.15.0" />
-    <PackageVersion Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.15.0" />
-    <PackageVersion Include="OpenTelemetry.Extensions.Hosting" Version="1.14.0" />
-    <PackageVersion Include="OpenTelemetry.Instrumentation.AspNetCore" Version="1.14.0" />
-    <PackageVersion Include="OpenTelemetry.Instrumentation.Http" Version="1.14.0" />
-    <PackageVersion Include="OpenTelemetry.Instrumentation.Runtime" Version="1.14.0" />
+    <PackageVersion Include="OpenTelemetry" Version="1.15.3" />
+    <PackageVersion Include="OpenTelemetry.Api" Version="1.15.3" />
+    <PackageVersion Include="OpenTelemetry.Exporter.Console" Version="1.15.3" />
+    <PackageVersion Include="OpenTelemetry.Exporter.InMemory" Version="1.15.3" />
+    <PackageVersion Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.15.3" />
+    <PackageVersion Include="OpenTelemetry.Extensions.Hosting" Version="1.15.3" />
+    <PackageVersion Include="OpenTelemetry.Instrumentation.AspNetCore" Version="1.15.2" />
+    <PackageVersion Include="OpenTelemetry.Instrumentation.Http" Version="1.15.1" />
+    <PackageVersion Include="OpenTelemetry.Instrumentation.Runtime" Version="1.15.1" />
     <!-- Microsoft.AspNetCore.* -->
     <PackageVersion Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="10.0.0" />
     <PackageVersion Include="Microsoft.AspNetCore.Authentication.OpenIdConnect" Version="10.0.0" />
diff --git a/dotnet/samples/04-hosting/FoundryHostedAgents/invocations/Hosted-Invocations-EchoAgent/Hosted-Invocations-EchoAgent.csproj b/dotnet/samples/04-hosting/FoundryHostedAgents/invocations/Hosted-Invocations-EchoAgent/Hosted-Invocations-EchoAgent.csproj
index d925172007..a0b9e2e0d8 100644
--- a/dotnet/samples/04-hosting/FoundryHostedAgents/invocations/Hosted-Invocations-EchoAgent/Hosted-Invocations-EchoAgent.csproj
+++ b/dotnet/samples/04-hosting/FoundryHostedAgents/invocations/Hosted-Invocations-EchoAgent/Hosted-Invocations-EchoAgent.csproj
@@ -13,6 +13,8 @@
   <ItemGroup>
     <PackageReference Include="Azure.AI.AgentServer.Invocations" />
     <PackageReference Include="DotNetEnv" />
+    <PackageReference Include="OpenTelemetry.Api" />
+    <PackageReference Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" />
   </ItemGroup>
 
   <!-- For contributors: uses ProjectReference to build against local source -->
diff --git a/dotnet/src/Microsoft.Agents.AI.Foundry.Hosting/Microsoft.Agents.AI.Foundry.Hosting.csproj b/dotnet/src/Microsoft.Agents.AI.Foundry.Hosting/Microsoft.Agents.AI.Foundry.Hosting.csproj
index 99ecde93ca..af02c44aad 100644
--- a/dotnet/src/Microsoft.Agents.AI.Foundry.Hosting/Microsoft.Agents.AI.Foundry.Hosting.csproj
+++ b/dotnet/src/Microsoft.Agents.AI.Foundry.Hosting/Microsoft.Agents.AI.Foundry.Hosting.csproj
@@ -34,6 +34,7 @@
     <PackageReference Include="Azure.AI.Projects" VersionOverride="2.1.0-beta.1" />
     <PackageReference Include="Azure.Identity" />
     <PackageReference Include="ModelContextProtocol" />
+    <PackageReference Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" />
   </ItemGroup>
 
   <ItemGroup>