diff --git a/.github/workflows/build-test-windows.yml b/.github/workflows/build-test-windows.yml
index 03c658ae6b..f39286167c 100644
--- a/.github/workflows/build-test-windows.yml
+++ b/.github/workflows/build-test-windows.yml
@@ -72,7 +72,7 @@ jobs:
         export USE_HOST_DEPS=1
         pushd .
         cd tests/py/dynamo
-        ${CONDA_RUN} python -m pip install --pre -r ../requirements.txt
+        ${CONDA_RUN} python -m pip install --pre -r ../requirements.txt --use-deprecated=legacy-resolver
         ${CONDA_RUN} python -m pytest --junitxml=${RUNNER_TEST_RESULTS_DIR}/dynamo_converters_test_results.xml -n 10 conversion/
         popd
 
@@ -98,7 +98,7 @@ jobs:
         export USE_HOST_DEPS=1
         pushd .
         cd tests/py/dynamo
-        ${CONDA_RUN} python -m pip install --pre -r ../requirements.txt
+        ${CONDA_RUN} python -m pip install --pre -r ../requirements.txt --use-deprecated=legacy-resolver
         ${CONDA_RUN} python -m pytest --junitxml=${RUNNER_TEST_RESULTS_DIR}/dynamo_fe_test_results.xml --ir dynamo models/test_models_export.py
         ${CONDA_RUN} python -m pytest --junitxml=${RUNNER_TEST_RESULTS_DIR}/dyn_models_export.xml --ir dynamo models/test_dyn_models.py
         popd
@@ -125,7 +125,7 @@ jobs:
         export USE_HOST_DEPS=1
         pushd .
         cd tests/py/dynamo
-        ${CONDA_RUN} python -m pip install --pre -r ../requirements.txt
+        ${CONDA_RUN} python -m pip install --pre -r ../requirements.txt --use-deprecated=legacy-resolver
         ${CONDA_RUN} python -m pytest -n 10 --junitxml=${RUNNER_TEST_RESULTS_DIR}/torch_compile_be_test_results.xml backend/
         ${CONDA_RUN} python -m pytest -n 4 --junitxml=${RUNNER_TEST_RESULTS_DIR}/torch_comple_be_e2e_test_results.xml --ir torch_compile models/test_models.py
         popd
@@ -152,7 +152,7 @@ jobs:
         export USE_HOST_DEPS=1
         pushd .
         cd tests/py/dynamo
-        ${CONDA_RUN} python -m pip install --pre -r ../requirements.txt
+        ${CONDA_RUN} python -m pip install --pre -r ../requirements.txt --use-deprecated=legacy-resolver
         ${CONDA_RUN} python -m pytest -n 4 --junitxml=${RUNNER_TEST_RESULTS_DIR}/tests_py_dynamo_core_runtime_test_results.xml runtime/
         ${CONDA_RUN} python -m pytest -n 4 --junitxml=${RUNNER_TEST_RESULTS_DIR}/tests_py_dynamo_core_partitioning_test_results.xml partitioning/
         ${CONDA_RUN} python -m pytest -n 4 --junitxml=${RUNNER_TEST_RESULTS_DIR}/tests_py_dynamo_core_lowering_test_results.xml lowering/