diff --git a/.github/workflows/test-suite.yml b/.github/workflows/test-suite.yml
index d21cb07..72fa1e1 100644
--- a/.github/workflows/test-suite.yml
+++ b/.github/workflows/test-suite.yml
@@ -14,7 +14,7 @@ jobs:
 
     strategy:
       matrix:
-        python-version: ["3.7", "3.8", "3.9", "3.10"]
+        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
 
     steps:
       - uses: "actions/checkout@v2"
diff --git a/httpx_caching/_async/_transport.py b/httpx_caching/_async/_transport.py
index 3d76c45..cc134e7 100644
--- a/httpx_caching/_async/_transport.py
+++ b/httpx_caching/_async/_transport.py
@@ -43,7 +43,6 @@ async def handle_async_request(
         self,
         request: httpx.Request,
     ) -> httpx.Response:
-
         caching_protocol = CachingPolicy(
             request=request,
             cache_etags=self.cache_etags,
diff --git a/httpx_caching/_sync/_transport.py b/httpx_caching/_sync/_transport.py
index cdadd90..94ae0b7 100644
--- a/httpx_caching/_sync/_transport.py
+++ b/httpx_caching/_sync/_transport.py
@@ -43,7 +43,6 @@ def handle_request(
         self,
         request: httpx.Request,
     ) -> httpx.Response:
-
         caching_protocol = CachingPolicy(
             request=request,
             cache_etags=self.cache_etags,
diff --git a/requirements.txt b/requirements.txt
index 37a5e3f..105b4ca 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,8 +4,8 @@ wheel==0.37.0
 
 # Testing
 autoflake==1.4
-black==22.1.0
-CherryPy==18.6.1
+black==23.1.0
+CherryPy==18.8.0
 coverage==6.3.2
 flake8==4.0.1
 flake8-bugbear==22.1.11
diff --git a/setup.py b/setup.py
index f28d013..1d21468 100644
--- a/setup.py
+++ b/setup.py
@@ -72,6 +72,7 @@ def get_packages(package):
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
+        "Programming Language :: Python :: 3.11",
         "Programming Language :: Python :: 3 :: Only",
     ],
-)
\ No newline at end of file
+)
diff --git a/tests/conftest.py b/tests/conftest.py
index 5c7b03a..1a203a0 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -67,7 +67,6 @@ def conditional_get(self, env, start_response):
         return start_response("304 Not Modified", [])
 
     def etag(self, env, start_response):
-
         headers = [("Etag", self.etag_string)]
         print(f'if none match: {env.get("HTTP_IF_NONE_MATCH")}')
         print(f"etag_string: {self.etag_string}")