diff --git a/templates/tools/dockerfile/interoptest/grpc_interop_aspnetcore/build_interop.sh.template b/templates/tools/dockerfile/interoptest/grpc_interop_aspnetcore/build_interop.sh.template
index fb0f2d2e5ad..7edd848125d 100644
--- a/templates/tools/dockerfile/interoptest/grpc_interop_aspnetcore/build_interop.sh.template
+++ b/templates/tools/dockerfile/interoptest/grpc_interop_aspnetcore/build_interop.sh.template
@@ -41,5 +41,5 @@
 
   # Cloning from a local path sets RepositoryUrl to a path and breaks Source Link.
   # Override RepositoryUrl to a URL to fix Source Link. The value doesn't matter.
-  dotnet build --configuration Debug --output ./output/InteropTestsWebsite testassets/InteropTestsWebsite/InteropTestsWebsite.csproj -p:RepositoryUrl=https://github.com/grpc/grpc-dotnet.git
-  dotnet build --configuration Debug --output ./output/InteropTestsClient testassets/InteropTestsClient/InteropTestsClient.csproj -p:RepositoryUrl=https://github.com/grpc/grpc-dotnet.git
+  dotnet build --configuration Debug --output ./output/InteropTestsWebsite testassets/InteropTestsWebsite/InteropTestsWebsite.csproj -p:RepositoryUrl=https://github.com/grpc/grpc-dotnet.git -p:LatestFramework=true
+  dotnet build --configuration Debug --output ./output/InteropTestsClient testassets/InteropTestsClient/InteropTestsClient.csproj -p:RepositoryUrl=https://github.com/grpc/grpc-dotnet.git -p:LatestFramework=true
diff --git a/tools/dockerfile/interoptest/grpc_interop_aspnetcore/build_interop.sh b/tools/dockerfile/interoptest/grpc_interop_aspnetcore/build_interop.sh
index 20a61c07eae..ab3382b46c2 100644
--- a/tools/dockerfile/interoptest/grpc_interop_aspnetcore/build_interop.sh
+++ b/tools/dockerfile/interoptest/grpc_interop_aspnetcore/build_interop.sh
@@ -39,5 +39,5 @@ fi
 
 # Cloning from a local path sets RepositoryUrl to a path and breaks Source Link.
 # Override RepositoryUrl to a URL to fix Source Link. The value doesn't matter.
-dotnet build --configuration Debug --output ./output/InteropTestsWebsite testassets/InteropTestsWebsite/InteropTestsWebsite.csproj -p:RepositoryUrl=https://github.com/grpc/grpc-dotnet.git
-dotnet build --configuration Debug --output ./output/InteropTestsClient testassets/InteropTestsClient/InteropTestsClient.csproj -p:RepositoryUrl=https://github.com/grpc/grpc-dotnet.git
+dotnet build --configuration Debug --output ./output/InteropTestsWebsite testassets/InteropTestsWebsite/InteropTestsWebsite.csproj -p:RepositoryUrl=https://github.com/grpc/grpc-dotnet.git -p:LatestFramework=true
+dotnet build --configuration Debug --output ./output/InteropTestsClient testassets/InteropTestsClient/InteropTestsClient.csproj -p:RepositoryUrl=https://github.com/grpc/grpc-dotnet.git -p:LatestFramework=true