Index: bleach/html5lib_shim.py
===================================================================
--- bleach/html5lib_shim.py.orig
+++ bleach/html5lib_shim.py
@@ -18,44 +18,44 @@ warnings.filterwarnings(
     "ignore",
     message="html5lib's sanitizer is deprecated",
     category=DeprecationWarning,
-    module="bleach._vendor.html5lib",
+    module="html5lib",
 )
 
-from bleach._vendor.html5lib import (  # noqa: E402 module level import not at top of file
+from html5lib import (  # noqa: E402 module level import not at top of file
     HTMLParser,
     getTreeWalker,
 )
-from bleach._vendor.html5lib import (
+from html5lib import (
     constants,
 )  # noqa: E402 module level import not at top of file
-from bleach._vendor.html5lib.constants import (  # noqa: E402 module level import not at top of file
+from html5lib.constants import (  # noqa: E402 module level import not at top of file
     namespaces,
     prefixes,
 )
-from bleach._vendor.html5lib.constants import (
+from html5lib.constants import (
     _ReparseException as ReparseException,
 )  # noqa: E402 module level import not at top of file
-from bleach._vendor.html5lib.filters.base import (
+from html5lib.filters.base import (
     Filter,
 )  # noqa: E402 module level import not at top of file
-from bleach._vendor.html5lib.filters.sanitizer import (
+from html5lib.filters.sanitizer import (
     allowed_protocols,
 )  # noqa: E402 module level import not at top of file
-from bleach._vendor.html5lib.filters.sanitizer import (
+from html5lib.filters.sanitizer import (
     Filter as SanitizerFilter,
 )  # noqa: E402 module level import not at top of file
-from bleach._vendor.html5lib._inputstream import (
+from html5lib._inputstream import (
     HTMLInputStream,
 )  # noqa: E402 module level import not at top of file
-from bleach._vendor.html5lib.serializer import (
+from html5lib.serializer import (
     escape,
     HTMLSerializer,
 )  # noqa: E402 module level import not at top of file
-from bleach._vendor.html5lib._tokenizer import (
+from html5lib._tokenizer import (
     attributeMap,
     HTMLTokenizer,
 )  # noqa: E402 module level import not at top of file
-from bleach._vendor.html5lib._trie import (
+from html5lib._trie import (
     Trie,
 )  # noqa: E402 module level import not at top of file
 
Index: tests/test_clean.py
===================================================================
--- tests/test_clean.py.orig
+++ tests/test_clean.py
@@ -7,7 +7,7 @@ import pytest
 from bleach import clean
 from bleach.html5lib_shim import Filter
 from bleach.sanitizer import Cleaner
-from bleach._vendor.html5lib.constants import rcdataElements
+from html5lib.constants import rcdataElements
 
 
 def test_clean_idempotent():
Index: bleach/sanitizer.py
===================================================================
--- bleach/sanitizer.py.orig
+++ bleach/sanitizer.py
@@ -283,7 +283,7 @@ class BleachSanitizerFilter(html5lib_shi
             "ignore",
             message="html5lib's sanitizer is deprecated",
             category=DeprecationWarning,
-            module="bleach._vendor.html5lib",
+            module="html5lib",
         )
         return super(BleachSanitizerFilter, self).__init__(source, **kwargs)