diff --git a/tools/cibw_macos.sh b/tools/cibw_macos.sh
index 51e4f2e..b29f2dd 100644
--- a/tools/cibw_macos.sh
+++ b/tools/cibw_macos.sh
@@ -1,8 +1,8 @@
 #!/usr/bin/env bash
 
 brew install libomp llvm openblas
-export CC=/usr/bin/clang
-export CXX=/usr/bin/clang++
+export CC=/usr/local/opt/llvm/bin/clang
+export CXX=/usr/local/opt/llvm/bin/clang++
 export CPPFLAGS="$CPPFLAGS -Xpreprocessor -fopenmp"
 export CFLAGS="$CFLAGS -I$PREFIX/include"
 export CXXFLAGS="$CXXFLAGS -I$PREFIX/include"
diff --git a/tools/cibw_windows.sh b/tools/cibw_windows.sh
new file mode 100644
index 0000000..64af62c
--- /dev/null
+++ b/tools/cibw_windows.sh
@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+
+choco install rtools -y --no-progress --force --version=4.0.0.20220206"
+echo "c:\rtools40\ucrt64\bin;" >> $PATH