diff --git a/ci/build_wheel.sh b/ci/build_wheel.sh
index 760e46e3..741aeab9 100755
--- a/ci/build_wheel.sh
+++ b/ci/build_wheel.sh
@@ -10,4 +10,4 @@ rapids-generate-version > ./VERSION
 python -m pip wheel . -w dist -v --no-deps --disable-pip-version-check
 ./ci/validate_wheel.sh dist
 
-RAPIDS_PY_WHEEL_NAME="dask-cuda" rapids-upload-wheels-to-s3 dist
+RAPIDS_PY_WHEEL_NAME="dask-cuda" RAPIDS_PY_WHEEL_PURE="1" rapids-upload-wheels-to-s3 dist
diff --git a/ci/test_wheel.sh b/ci/test_wheel.sh
index ba8f3a7e..17fe660b 100755
--- a/ci/test_wheel.sh
+++ b/ci/test_wheel.sh
@@ -3,7 +3,7 @@
 
 set -eou pipefail
 
-RAPIDS_PY_WHEEL_NAME="dask-cuda" rapids-download-wheels-from-s3 python ./dist
+RAPIDS_PY_WHEEL_NAME="dask-cuda" RAPIDS_PY_WHEEL_PURE="1" rapids-download-wheels-from-s3 python ./dist
 
 # echo to expand wildcard before adding `[extra]` requires for pip
 python -m pip install $(echo ./dist/dask_cuda*.whl)[test]