Update warning message in __init__.py

src/datasets/__init__.py

@@ -25,9 +25,9 @@
 from pyarrow import total_allocated_bytes
 
 
-if _version.parse(pyarrow.__version__).major < 1:
+if _version.parse(pyarrow.__version__).major < 3:
     raise ImportWarning(
-        "To use `datasets`, the module `pyarrow>=1.0.0` is required, and the current version of `pyarrow` doesn't match this condition.\n"
+        "To use `datasets`, the module `pyarrow>=3.0.0` is required, and the current version of `pyarrow` doesn't match this condition.\n"
         "If you are running this in a Google Colab, you should probably just restart the runtime to use the right version of `pyarrow`."
     )