diff --git a/poetry.lock b/poetry.lock
index d583760..b9a6204 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -223,37 +223,41 @@ python-versions = ">=3.6.1"
 
 [[package]]
 name = "httpcore"
-version = "0.13.7"
+version = "0.15.0"
 description = "A minimal low-level HTTP client."
 category = "dev"
 optional = false
-python-versions = ">=3.6"
+python-versions = ">=3.7"
 
 [package.dependencies]
 anyio = ">=3.0.0,<4.0.0"
+certifi = "*"
 h11 = ">=0.11,<0.13"
 sniffio = ">=1.0.0,<2.0.0"
 
 [package.extras]
 http2 = ["h2 (>=3,<5)"]
+socks = ["socksio (>=1.0.0,<2.0.0)"]
 
 [[package]]
 name = "httpx"
-version = "0.18.2"
+version = "0.23.0"
 description = "The next generation HTTP client."
 category = "dev"
 optional = false
-python-versions = ">=3.6"
+python-versions = ">=3.7"
 
 [package.dependencies]
 certifi = "*"
-httpcore = ">=0.13.3,<0.14.0"
+httpcore = ">=0.15.0,<0.16.0"
 rfc3986 = {version = ">=1.3,<2", extras = ["idna2008"]}
 sniffio = "*"
 
 [package.extras]
-brotli = ["brotlicffi (>=1.0.0,<2.0.0)"]
-http2 = ["h2 (>=3.0.0,<4.0.0)"]
+brotli = ["brotlicffi", "brotli"]
+cli = ["click (>=8.0.0,<9.0.0)", "rich (>=10,<13)", "pygments (>=2.0.0,<3.0.0)"]
+http2 = ["h2 (>=3,<5)"]
+socks = ["socksio (>=1.0.0,<2.0.0)"]
 
 [[package]]
 name = "hyperframe"
@@ -574,7 +578,7 @@ testing = ["pytest (>=6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytest-
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.8"
-content-hash = "bd4a6605b9ddf79a0f70a141e780ce321f9c22d65d5c983fdc887796184456b4"
+content-hash = "3e27f38508d6ddbcdc7d577e28a7397e5a172d1e3ed985850b4bd7a51d3f4162"
 
 [metadata.files]
 aiofiles = [
@@ -830,12 +834,12 @@ hpack = [
     {file = "hpack-4.0.0.tar.gz", hash = "sha256:fc41de0c63e687ebffde81187a948221294896f6bdc0ae2312708df339430095"},
 ]
 httpcore = [
-    {file = "httpcore-0.13.7-py3-none-any.whl", hash = "sha256:369aa481b014cf046f7067fddd67d00560f2f00426e79569d99cb11245134af0"},
-    {file = "httpcore-0.13.7.tar.gz", hash = "sha256:036f960468759e633574d7c121afba48af6419615d36ab8ede979f1ad6276fa3"},
+    {file = "httpcore-0.15.0-py3-none-any.whl", hash = "sha256:1105b8b73c025f23ff7c36468e4432226cbb959176eab66864b8e31c4ee27fa6"},
+    {file = "httpcore-0.15.0.tar.gz", hash = "sha256:18b68ab86a3ccf3e7dc0f43598eaddcf472b602aba29f9aa6ab85fe2ada3980b"},
 ]
 httpx = [
-    {file = "httpx-0.18.2-py3-none-any.whl", hash = "sha256:979afafecb7d22a1d10340bafb403cf2cb75aff214426ff206521fc79d26408c"},
-    {file = "httpx-0.18.2.tar.gz", hash = "sha256:9f99c15d33642d38bce8405df088c1c4cfd940284b4290cacbfb02e64f4877c6"},
+    {file = "httpx-0.23.0-py3-none-any.whl", hash = "sha256:42974f577483e1e932c3cdc3cd2303e883cbfba17fe228b0f63589764d7b9c4b"},
+    {file = "httpx-0.23.0.tar.gz", hash = "sha256:f28eac771ec9eb4866d3fb4ab65abd42d38c424739e80c08d8d20570de60b0ef"},
 ]
 hyperframe = [
     {file = "hyperframe-6.0.1-py3-none-any.whl", hash = "sha256:0ec6bafd80d8ad2195c4f03aacba3a8265e57bc4cff261e802bf39970ed02a15"},
diff --git a/pyproject.toml b/pyproject.toml
index 72e529f..f929ad2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,7 +14,7 @@ Markdown = "^3.3.4"
 matrix-nio = "^0.18.3"
 
 [tool.poetry.dev-dependencies]
-httpx = "^0.18.2"
+httpx = "^0.23.0"
 coverage = "^5.5"
 black = "^21.6b0"
 pydocstyle = "^6.1.1"