diff --git a/workshop/Lesson-02-ServiceDefaults/code/ServiceDefaults/ServiceDefaults.csproj b/workshop/Lesson-02-ServiceDefaults/code/ServiceDefaults/ServiceDefaults.csproj
index 0eaff945..33e5c607 100644
--- a/workshop/Lesson-02-ServiceDefaults/code/ServiceDefaults/ServiceDefaults.csproj
+++ b/workshop/Lesson-02-ServiceDefaults/code/ServiceDefaults/ServiceDefaults.csproj
@@ -8,6 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="OpenTelemetry.Api" Version="1.15.3" />
     <FrameworkReference Include="Microsoft.AspNetCore.App" />
 
     <PackageReference Include="Microsoft.Extensions.Http.Resilience" Version="10.0.0" />
diff --git a/workshop/Lesson-03-Dashboard-AppHost/code/ServiceDefaults/ServiceDefaults.csproj b/workshop/Lesson-03-Dashboard-AppHost/code/ServiceDefaults/ServiceDefaults.csproj
index 0eaff945..33e5c607 100644
--- a/workshop/Lesson-03-Dashboard-AppHost/code/ServiceDefaults/ServiceDefaults.csproj
+++ b/workshop/Lesson-03-Dashboard-AppHost/code/ServiceDefaults/ServiceDefaults.csproj
@@ -8,6 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="OpenTelemetry.Api" Version="1.15.3" />
     <FrameworkReference Include="Microsoft.AspNetCore.App" />
 
     <PackageReference Include="Microsoft.Extensions.Http.Resilience" Version="10.0.0" />
diff --git a/workshop/Lesson-04-ServiceDiscovery/code/ServiceDefaults/ServiceDefaults.csproj b/workshop/Lesson-04-ServiceDiscovery/code/ServiceDefaults/ServiceDefaults.csproj
index 2fd57a71..a451bc82 100644
--- a/workshop/Lesson-04-ServiceDiscovery/code/ServiceDefaults/ServiceDefaults.csproj
+++ b/workshop/Lesson-04-ServiceDiscovery/code/ServiceDefaults/ServiceDefaults.csproj
@@ -8,6 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="OpenTelemetry.Api" Version="1.15.3" />
     <FrameworkReference Include="Microsoft.AspNetCore.App" />
 
     <PackageReference Include="Microsoft.Extensions.Http.Resilience" Version="10.2.0" />
diff --git a/workshop/Lesson-05-Integrations/code/ServiceDefaults/ServiceDefaults.csproj b/workshop/Lesson-05-Integrations/code/ServiceDefaults/ServiceDefaults.csproj
index 5d9772bc..d0b125b9 100644
--- a/workshop/Lesson-05-Integrations/code/ServiceDefaults/ServiceDefaults.csproj
+++ b/workshop/Lesson-05-Integrations/code/ServiceDefaults/ServiceDefaults.csproj
@@ -8,6 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="OpenTelemetry.Api" Version="1.15.3" />
     <FrameworkReference Include="Microsoft.AspNetCore.App" />
 
     <PackageReference Include="Microsoft.Extensions.Http.Resilience" Version="10.0.0" />
diff --git a/workshop/Lesson-06-Telemetry/code/ServiceDefaults/ServiceDefaults.csproj b/workshop/Lesson-06-Telemetry/code/ServiceDefaults/ServiceDefaults.csproj
index 0eaff945..33e5c607 100644
--- a/workshop/Lesson-06-Telemetry/code/ServiceDefaults/ServiceDefaults.csproj
+++ b/workshop/Lesson-06-Telemetry/code/ServiceDefaults/ServiceDefaults.csproj
@@ -8,6 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="OpenTelemetry.Api" Version="1.15.3" />
     <FrameworkReference Include="Microsoft.AspNetCore.App" />
 
     <PackageReference Include="Microsoft.Extensions.Http.Resilience" Version="10.0.0" />
diff --git a/workshop/Lesson-07-Database/code/ServiceDefaults/ServiceDefaults.csproj b/workshop/Lesson-07-Database/code/ServiceDefaults/ServiceDefaults.csproj
index faaf50ef..49b24878 100644
--- a/workshop/Lesson-07-Database/code/ServiceDefaults/ServiceDefaults.csproj
+++ b/workshop/Lesson-07-Database/code/ServiceDefaults/ServiceDefaults.csproj
@@ -8,6 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="OpenTelemetry.Api" Version="1.15.3" />
     <FrameworkReference Include="Microsoft.AspNetCore.App" />
 
     <PackageReference Include="Microsoft.Extensions.Http.Resilience" Version="10.0.0" />
diff --git a/workshop/Lesson-08-Integration-Testing/code/ServiceDefaults/ServiceDefaults.csproj b/workshop/Lesson-08-Integration-Testing/code/ServiceDefaults/ServiceDefaults.csproj
index 0eaff945..33e5c607 100644
--- a/workshop/Lesson-08-Integration-Testing/code/ServiceDefaults/ServiceDefaults.csproj
+++ b/workshop/Lesson-08-Integration-Testing/code/ServiceDefaults/ServiceDefaults.csproj
@@ -8,6 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="OpenTelemetry.Api" Version="1.15.3" />
     <FrameworkReference Include="Microsoft.AspNetCore.App" />
 
     <PackageReference Include="Microsoft.Extensions.Http.Resilience" Version="10.0.0" />
diff --git a/workshop/Lesson-09-Deployment/code/ServiceDefaults/ServiceDefaults.csproj b/workshop/Lesson-09-Deployment/code/ServiceDefaults/ServiceDefaults.csproj
index 0eaff945..33e5c607 100644
--- a/workshop/Lesson-09-Deployment/code/ServiceDefaults/ServiceDefaults.csproj
+++ b/workshop/Lesson-09-Deployment/code/ServiceDefaults/ServiceDefaults.csproj
@@ -8,6 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="OpenTelemetry.Api" Version="1.15.3" />
     <FrameworkReference Include="Microsoft.AspNetCore.App" />
 
     <PackageReference Include="Microsoft.Extensions.Http.Resilience" Version="10.0.0" />
diff --git a/workshop/Lesson-10-Container-Management/code/ServiceDefaults/ServiceDefaults.csproj b/workshop/Lesson-10-Container-Management/code/ServiceDefaults/ServiceDefaults.csproj
index 1caf1ebd..97ff5ab7 100644
--- a/workshop/Lesson-10-Container-Management/code/ServiceDefaults/ServiceDefaults.csproj
+++ b/workshop/Lesson-10-Container-Management/code/ServiceDefaults/ServiceDefaults.csproj
@@ -6,6 +6,7 @@
     <IsAspireSharedProject>true</IsAspireSharedProject>
   </PropertyGroup>
   <ItemGroup>
+    <PackageReference Include="OpenTelemetry.Api" Version="1.15.3" />
    <FrameworkReference Include="Microsoft.AspNetCore.App" />
 
     <PackageReference Include="Microsoft.Extensions.Http.Resilience" Version="10.0.0" />
diff --git a/workshop/Lesson-11-Azure-Integrations/code/ServiceDefaults/ServiceDefaults.csproj b/workshop/Lesson-11-Azure-Integrations/code/ServiceDefaults/ServiceDefaults.csproj
index 0dd462a8..beb6981a 100644
--- a/workshop/Lesson-11-Azure-Integrations/code/ServiceDefaults/ServiceDefaults.csproj
+++ b/workshop/Lesson-11-Azure-Integrations/code/ServiceDefaults/ServiceDefaults.csproj
@@ -7,6 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="OpenTelemetry.Api" Version="1.15.3" />
     <FrameworkReference Include="Microsoft.AspNetCore.App" />
 
     <PackageReference Include="Microsoft.Extensions.Http.Resilience" Version="10.0.0" />
diff --git a/workshop/Lesson-12-Custom-Commands/code/ServiceDefaults/ServiceDefaults.csproj b/workshop/Lesson-12-Custom-Commands/code/ServiceDefaults/ServiceDefaults.csproj
index 0dd462a8..beb6981a 100644
--- a/workshop/Lesson-12-Custom-Commands/code/ServiceDefaults/ServiceDefaults.csproj
+++ b/workshop/Lesson-12-Custom-Commands/code/ServiceDefaults/ServiceDefaults.csproj
@@ -7,6 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="OpenTelemetry.Api" Version="1.15.3" />
     <FrameworkReference Include="Microsoft.AspNetCore.App" />
 
     <PackageReference Include="Microsoft.Extensions.Http.Resilience" Version="10.0.0" />
diff --git a/workshop/Lesson-13-HealthChecks/code/ServiceDefaults/ServiceDefaults.csproj b/workshop/Lesson-13-HealthChecks/code/ServiceDefaults/ServiceDefaults.csproj
index 753f021e..fa93eb54 100644
--- a/workshop/Lesson-13-HealthChecks/code/ServiceDefaults/ServiceDefaults.csproj
+++ b/workshop/Lesson-13-HealthChecks/code/ServiceDefaults/ServiceDefaults.csproj
@@ -6,6 +6,7 @@
     <IsAspireSharedProject>true</IsAspireSharedProject>
   </PropertyGroup>
   <ItemGroup>
+    <PackageReference Include="OpenTelemetry.Api" Version="1.15.3" />
     <FrameworkReference Include="Microsoft.AspNetCore.App" />
     <PackageReference Include="Microsoft.Extensions.Http.Resilience" Version="10.0.0" />
     <PackageReference Include="Microsoft.Extensions.ServiceDiscovery" Version="10.0.0" />
diff --git a/workshop/Lesson-14-GitHub-Models-Integration/code/ServiceDefaults/ServiceDefaults.csproj b/workshop/Lesson-14-GitHub-Models-Integration/code/ServiceDefaults/ServiceDefaults.csproj
index 6248b59d..85629d4e 100644
--- a/workshop/Lesson-14-GitHub-Models-Integration/code/ServiceDefaults/ServiceDefaults.csproj
+++ b/workshop/Lesson-14-GitHub-Models-Integration/code/ServiceDefaults/ServiceDefaults.csproj
@@ -6,6 +6,7 @@
     <IsAspireSharedProject>true</IsAspireSharedProject>
   </PropertyGroup>
   <ItemGroup>
+    <PackageReference Include="OpenTelemetry.Api" Version="1.15.3" />
     <FrameworkReference Include="Microsoft.AspNetCore.App" />
 
     <PackageReference Include="Microsoft.Extensions.Http.Resilience" Version="10.0.0" />
diff --git a/workshop/Lesson-15-Docker-Integration/code/ServiceDefaults/ServiceDefaults.csproj b/workshop/Lesson-15-Docker-Integration/code/ServiceDefaults/ServiceDefaults.csproj
index b289f9a5..ac8386d4 100644
--- a/workshop/Lesson-15-Docker-Integration/code/ServiceDefaults/ServiceDefaults.csproj
+++ b/workshop/Lesson-15-Docker-Integration/code/ServiceDefaults/ServiceDefaults.csproj
@@ -6,6 +6,7 @@
     <IsAspireSharedProject>true</IsAspireSharedProject>
   </PropertyGroup>
   <ItemGroup>
+    <PackageReference Include="OpenTelemetry.Api" Version="1.15.3" />
     <FrameworkReference Include="Microsoft.AspNetCore.App" />
     <PackageReference Include="Microsoft.Extensions.Http.Resilience" Version="9.7.0" />
     <PackageReference Include="Microsoft.Extensions.ServiceDiscovery" Version="10.4.0" />