diff --git a/spacy/strings.pyx b/spacy/strings.pyx
index c5dd4725b..df8755308 100644
--- a/spacy/strings.pyx
+++ b/spacy/strings.pyx
@@ -1,8 +1,9 @@
 # cython: infer_types=True
 # cython: profile=False
 cimport cython
-from typing import Iterable, Iterator, List, Optional, Tuple, Union
+
 from contextlib import contextmanager
+from typing import Iterable, Iterator, List, Optional, Tuple, Union
 
 from libc.stdint cimport uint32_t
 from libc.string cimport memcpy
diff --git a/spacy/vocab.pyi b/spacy/vocab.pyi
index ae8708fec..ee7636f02 100644
--- a/spacy/vocab.pyi
+++ b/spacy/vocab.pyi
@@ -1,9 +1,9 @@
+from contextlib import contextmanager
 from pathlib import Path
 from typing import Any, Callable, Dict, Iterable, Iterator, List, Optional, Union
-from contextlib import contextmanager
 
-from thinc.types import Floats1d, FloatsXd
 from cymem.cymem import Pool
+from thinc.types import Floats1d, FloatsXd
 
 from . import Language
 from .lexeme import Lexeme
diff --git a/spacy/vocab.pyx b/spacy/vocab.pyx
index ebadcbf9b..97ba5d68c 100644
--- a/spacy/vocab.pyx
+++ b/spacy/vocab.pyx
@@ -1,10 +1,10 @@
 import functools
+from contextlib import ExitStack, contextmanager
+from typing import Iterator, Optional
 
 import numpy
 import srsly
 from thinc.api import get_array_module, get_current_ops
-from contextlib import contextmanager, ExitStack
-from typing import Iterator, Optional
 
 from .attrs cimport LANG, ORTH
 from .lexeme cimport EMPTY_LEXEME, OOV_RANK, Lexeme