diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index 3d2300a9545..8eeba91a4c0 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -213,6 +213,7 @@ jobs:
         working-directory: ${{ github.workspace }}/run-tests/
         env:
           CI: false
+          DOTNET_ASPIRE_CONTAINER_RUNTIME: docker
           DCP_DIAGNOSTICS_LOG_LEVEL: debug
           DCP_DIAGNOSTICS_LOG_FOLDER: ${{ github.workspace }}/testresults/dcp
           BUILT_NUGETS_PATH: ${{ github.workspace }}/artifacts/packages/Debug/Shipping
@@ -234,6 +235,7 @@ jobs:
         id: run-tests
         env:
           CI: false
+          DOTNET_ASPIRE_CONTAINER_RUNTIME: docker
           DCP_DIAGNOSTICS_LOG_LEVEL: debug
           DCP_DIAGNOSTICS_LOG_FOLDER: ${{ github.workspace }}/testresults/dcp
           # During restore and build, we use -ci, which causes NUGET_PACKAGES to point to a local cache (Arcade behavior).
diff --git a/eng/pipelines/templates/BuildAndTest.yml b/eng/pipelines/templates/BuildAndTest.yml
index bf2313a80c0..4d35dc037c2 100644
--- a/eng/pipelines/templates/BuildAndTest.yml
+++ b/eng/pipelines/templates/BuildAndTest.yml
@@ -106,6 +106,7 @@ steps:
               "${{ parameters.buildScript }} -testnobuild -test -configuration ${{ parameters.buildConfig }} /bl:${{ parameters.repoLogPath }}/tests.binlog /maxcpucount:1 /p:BuildInParallel=false $(_OfficialBuildIdArgs)"
       env:
         DOCKER_BUILDKIT: 1
+        DOTNET_ASPIRE_CONTAINER_RUNTIME: docker
         # https://github.com/dotnet/aspire/issues/5195#issuecomment-2271687822
         DOTNET_ASPIRE_DEPENDENCY_CHECK_TIMEOUT: 180
         DCP_DIAGNOSTICS_LOG_LEVEL: debug
diff --git a/tests/helix/send-to-helix-inner.proj b/tests/helix/send-to-helix-inner.proj
index 5f1f383cd9e..ebab71b7976 100644
--- a/tests/helix/send-to-helix-inner.proj
+++ b/tests/helix/send-to-helix-inner.proj
@@ -153,6 +153,9 @@
 
     <HelixPreCommand Condition="'$(OS)' == 'Windows_NT'" Include="dotnet dev-certs https --trust" />
 
+    <!-- Force container runtime to Docker since that's what is installed on Helix -->
+    <HelixPreCommand Condition="'$(OS)' == 'Windows_NT'" Include="$(_EnvVarSetKeyword) DOTNET_ASPIRE_CONTAINER_RUNTIME=docker" />
+
     <!-- Set the DCP env -->
     <HelixPreCommand Include="$(_EnvVarSetKeyword) DCP_DIAGNOSTICS_LOG_LEVEL=debug" />
     <HelixPreCommand Include="$(_EnvVarSetKeyword) DCP_DIAGNOSTICS_LOG_FOLDER=$(_HelixLogsPath)" />