...

pyproject.toml

@@ -35,15 +35,15 @@ repair-wheel-command = "delvewheel repair --add-path lib/windows {wheel} -w {des
 
 [tool.cibuildwheel.linux]
 before-all = """
-pip install conan
+pip install conan<2.0.0
 conan profile new default --detect
 conan config set storage.path={package}/conan_data
 conan install --install-folder {package}/conan_build --remote conancenter {package}/conanfile.txt
 """
 
 [tool.cibuildwheel.macos]
-environment = { LIBRARY_PATH="$(pwd)/lib/darwin/:$LIBRARY_PATH" }
+environment = { LIBRARY_PATH = "$(pwd)/lib/darwin/:$LIBRARY_PATH" }
 repair-wheel-command = [
     'DYLD_LIBRARY_PATH=$LIBRARY_PATH delocate-listdeps {wheel}',
-    'DYLD_LIBRARY_PATH=$LIBRARY_PATH delocate-wheel --require-archs {delocate_archs} -w {dest_dir} {wheel}'
+    'DYLD_LIBRARY_PATH=$LIBRARY_PATH delocate-wheel --require-archs {delocate_archs} -w {dest_dir} {wheel}',
 ]