Index: pyproject.toml
--- pyproject.toml.orig
+++ pyproject.toml
@@ -16,7 +16,7 @@ requires = [
     # Included here for seamless wheel builds.
     # Packagers can choose to replace it by externally provided
     # c-blosc2 library and headers
-    "blosc2 >= 2.3.0",
+    #"blosc2 >= 2.3.0",
 ]
 build-backend = "setuptools.build_meta"
 # build-backend = "mesonpy"  # and replace ``setuptools`` above
