diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 42647fa..b0b3659 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,9 +16,9 @@ jobs:
         os: [ubuntu-latest]
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Setup Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v3
+        uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies
@@ -34,7 +34,7 @@ jobs:
         # run: python -m pytest tests --cov=./httpx_socks --cov-report term-missing -s
         run: python -m pytest tests --cov=./httpx_socks --cov-report xml
       - name: Upload coverage
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v5
         with:
           file: ./coverage.xml
           flags: unit
diff --git a/httpx_socks/_async_transport.py b/httpx_socks/_async_transport.py
index b15405b..5b9c332 100644
--- a/httpx_socks/_async_transport.py
+++ b/httpx_socks/_async_transport.py
@@ -34,7 +34,6 @@ def __init__(
             verify=verify,
             cert=cert,
             trust_env=trust_env,
-            http2=kwargs.get('http2', False),
         )
 
         self._pool = AsyncProxy(
diff --git a/httpx_socks/_sync_transport.py b/httpx_socks/_sync_transport.py
index 179f86b..0d9e208 100644
--- a/httpx_socks/_sync_transport.py
+++ b/httpx_socks/_sync_transport.py
@@ -35,7 +35,6 @@ def __init__(
             verify=verify,
             cert=cert,
             trust_env=trust_env,
-            http2=kwargs.get('http2', False),
         )
 
         self._pool = SyncProxy(
diff --git a/requirements.txt b/requirements.txt
index b698a37..cace48c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-httpx>=0.21.0,<0.28.0
+httpx>=0.21.0,<0.29.0
 httpcore>=0.17.3,<2.0
 anyio==3.*
 python-socks>=2.0.0
diff --git a/setup.py b/setup.py
index a1c571e..f1bf30d 100644
--- a/setup.py
+++ b/setup.py
@@ -34,7 +34,7 @@ def get_long_description():
     packages=['httpx_socks'],
     keywords='httpx asyncio socks socks5 socks4 http proxy',
     install_requires=[
-        'httpx>=0.21.0,<0.28.0',
+        'httpx>=0.21.0,<0.29.0',
         'httpcore>=0.17.3,<2.0',
         'python-socks>=2.0.0',
     ],