diff --git a/Directory.Packages.props b/Directory.Packages.props
index b9b1e46ab..fe7ade0db 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -76,11 +76,11 @@
     <PackageVersion Include="Microsoft.Extensions.TimeProvider.Testing" Version="10.1.0" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.3.0" />
     <PackageVersion Include="Moq" Version="4.20.72" />
-    <PackageVersion Include="OpenTelemetry" Version="1.15.1" />
-    <PackageVersion Include="OpenTelemetry.Exporter.InMemory" Version="1.15.1" />
-    <PackageVersion Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.15.1" />
+    <PackageVersion Include="OpenTelemetry" Version="1.15.2" />
+    <PackageVersion Include="OpenTelemetry.Exporter.InMemory" Version="1.15.2" />
+    <PackageVersion Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.15.2" />
     <PackageVersion Include="OpenTelemetry.Instrumentation.Http" Version="1.15.0" />
-    <PackageVersion Include="OpenTelemetry.Extensions.Hosting" Version="1.15.1" />
+    <PackageVersion Include="OpenTelemetry.Extensions.Hosting" Version="1.15.2" />
     <PackageVersion Include="OpenTelemetry.Instrumentation.AspNetCore" Version="1.15.1" />
     <PackageVersion Include="Serilog.Extensions.Hosting" Version="10.0.0" />
     <PackageVersion Include="Serilog.Extensions.Logging" Version="10.0.0" />
diff --git a/samples/AspNetCoreMcpPerSessionTools/AspNetCoreMcpPerSessionTools.csproj b/samples/AspNetCoreMcpPerSessionTools/AspNetCoreMcpPerSessionTools.csproj
index 23e95062c..8b4fe6339 100644
--- a/samples/AspNetCoreMcpPerSessionTools/AspNetCoreMcpPerSessionTools.csproj
+++ b/samples/AspNetCoreMcpPerSessionTools/AspNetCoreMcpPerSessionTools.csproj
@@ -12,6 +12,7 @@
   </ItemGroup>
 
   <ItemGroup>
+    <PackageReference Include="OpenTelemetry" />
     <PackageReference Include="OpenTelemetry.Extensions.Hosting" />
     <PackageReference Include="OpenTelemetry.Instrumentation.AspNetCore" />
     <PackageReference Include="OpenTelemetry.Instrumentation.Http" />
diff --git a/samples/AspNetCoreMcpServer/AspNetCoreMcpServer.csproj b/samples/AspNetCoreMcpServer/AspNetCoreMcpServer.csproj
index 59ab49828..ad83541dd 100644
--- a/samples/AspNetCoreMcpServer/AspNetCoreMcpServer.csproj
+++ b/samples/AspNetCoreMcpServer/AspNetCoreMcpServer.csproj
@@ -12,6 +12,7 @@
   </ItemGroup>
 
   <ItemGroup>
+    <PackageReference Include="OpenTelemetry" />
     <PackageReference Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" />
     <PackageReference Include="OpenTelemetry.Extensions.Hosting" />
     <PackageReference Include="OpenTelemetry.Instrumentation.AspNetCore" />
diff --git a/samples/ChatWithTools/ChatWithTools.csproj b/samples/ChatWithTools/ChatWithTools.csproj
index 3723185fe..780f2820f 100644
--- a/samples/ChatWithTools/ChatWithTools.csproj
+++ b/samples/ChatWithTools/ChatWithTools.csproj
@@ -19,6 +19,7 @@
   </ItemGroup>
 
   <ItemGroup>
+    <PackageReference Include="OpenTelemetry" />
     <ProjectReference Include="..\..\src\ModelContextProtocol.Core\ModelContextProtocol.Core.csproj" />
   </ItemGroup>
 
diff --git a/samples/EverythingServer/EverythingServer.csproj b/samples/EverythingServer/EverythingServer.csproj
index eadf720ca..233bd6a0b 100644
--- a/samples/EverythingServer/EverythingServer.csproj
+++ b/samples/EverythingServer/EverythingServer.csproj
@@ -14,6 +14,7 @@
   </ItemGroup>
 
   <ItemGroup>
+    <PackageReference Include="OpenTelemetry" />
     <ProjectReference Include="..\..\src\ModelContextProtocol.AspNetCore\ModelContextProtocol.AspNetCore.csproj" />
   </ItemGroup>