diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 20e05358..de096b43 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -29,4 +29,4 @@ repos:
     rev: v1.12.1
     hooks:
       - id: blacken-docs
-        additional_dependencies: [ black ]
+        additional_dependencies: [ black == 23.1a1 ]
diff --git a/README.rst b/README.rst
index 0e4eec56..2a693d5f 100644
--- a/README.rst
+++ b/README.rst
@@ -760,6 +760,7 @@ Example that shows how to set custom registry
     print("Before tests:", responses.mock.get_registry())
     """ Before tests: <responses.registries.FirstMatchRegistry object> """
 
+
     # using function decorator
     @responses.activate(registry=CustomRegistry)
     def run():
@@ -1026,7 +1027,6 @@ to check how many times each request was matched.
 
     @responses.activate
     def test_call_count_with_matcher():
-
         rsp = responses.get(
             "http://www.example.com",
             match=(matchers.query_param_matcher({}),),
@@ -1310,7 +1310,6 @@ replaced.
 
     @responses.activate
     def test_replace():
-
         responses.get("http://example.org", json={"data": 1})
         responses.replace(responses.GET, "http://example.org", json={"data": 2})