diff --git a/.github/workflows/wheels.yml b/.github/workflows/wheels.yml
index f57b785..620cf26 100644
--- a/.github/workflows/wheels.yml
+++ b/.github/workflows/wheels.yml
@@ -155,13 +155,13 @@ jobs:
           CIBW_ENVIRONMENT_PASS_LINUX: SUITESPARSE_FAST_BUILD SUITESPARSE_FASTEST_BUILD
 
           # CMAKE_GNUtoMS=ON asks suitesparse.sh to build libraries in MSVC style on Windows.
-          CIBW_ENVIRONMENT_WINDOWS: CMAKE_GNUtoMS=ON GRAPHBLAS_PREFIX="C:/GraphBLAS"
+          CIBW_ENVIRONMENT_WINDOWS: GRAPHBLAS_PREFIX="C:/GraphBLAS" CMAKE_GNUtoMS=ON
 
           # macOS libomp requires special configs. BREW_LIBOMP=1 asks suitesparse.sh to include them.
           # SUITESPARSE_MACOS_ARCH asks to build a particular architecture. Either x86 or arm64.
-          CIBW_ENVIRONMENT_MACOS: BREW_LIBOMP="1" SUITESPARSE_MACOS_ARCH=${{ matrix.cibw_archs }} GRAPHBLAS_PREFIX="/tmp/graphblas"
+          CIBW_ENVIRONMENT_MACOS: GRAPHBLAS_PREFIX="./graphblas" BREW_LIBOMP="1" SUITESPARSE_MACOS_ARCH=${{ matrix.cibw_archs }}
 
-          CIBW_ENVIRONMENT_LINUX: GRAPHBLAS_PREFIX="/tmp/graphblas"
+          CIBW_ENVIRONMENT_LINUX: GRAPHBLAS_PREFIX="./graphblas"
 
           # Uncomment to only build CPython wheels
           # CIBW_BUILD: "cp*"