diff --git a/poetry.lock b/poetry.lock
index de9934c5..1bdea3c6 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,4 +1,4 @@
-# This file is automatically @generated by Poetry 1.4.2 and should not be changed by hand.
+# This file is automatically @generated by Poetry and should not be changed by hand.
 
 [[package]]
 name = "alabaster"
@@ -17,7 +17,7 @@ name = "anyio"
 version = "3.6.2"
 description = "High level compatibility layer for multiple asynchronous event loop implementations"
 category = "main"
-optional = true
+optional = false
 python-versions = ">=3.6.2"
 files = [
     {file = "anyio-3.6.2-py3-none-any.whl", hash = "sha256:fbbe32bd270d2a2ef3ed1c5d45041250284e31fc0a4df4a5a6071842051a51e3"},
@@ -578,8 +578,8 @@ dotenv = ["python-dotenv"]
 name = "h11"
 version = "0.14.0"
 description = "A pure-Python, bring-your-own-I/O implementation of HTTP/1.1"
-category = "main"
-optional = true
+category = "dev"
+optional = false
 python-versions = ">=3.7"
 files = [
     {file = "h11-0.14.0-py3-none-any.whl", hash = "sha256:e3fe4ac4b851c468cc8363d500db52c2ead036020723024a109d37346efaa761"},
@@ -593,8 +593,8 @@ typing-extensions = {version = "*", markers = "python_version < \"3.8\""}
 name = "httpcore"
 version = "0.17.0"
 description = "A minimal low-level HTTP client."
-category = "main"
-optional = true
+category = "dev"
+optional = false
 python-versions = ">=3.7"
 files = [
     {file = "httpcore-0.17.0-py3-none-any.whl", hash = "sha256:0fdfea45e94f0c9fd96eab9286077f9ff788dd186635ae61b312693e4d943599"},
@@ -615,8 +615,8 @@ socks = ["socksio (>=1.0.0,<2.0.0)"]
 name = "httpx"
 version = "0.24.0"
 description = "The next generation HTTP client."
-category = "main"
-optional = true
+category = "dev"
+optional = false
 python-versions = ">=3.7"
 files = [
     {file = "httpx-0.24.0-py3-none-any.whl", hash = "sha256:447556b50c1921c351ea54b4fe79d91b724ed2b027462ab9a329465d147d5a4e"},
@@ -1538,7 +1538,7 @@ name = "sniffio"
 version = "1.3.0"
 description = "Sniff out which async library your code is running under"
 category = "main"
-optional = true
+optional = false
 python-versions = ">=3.7"
 files = [
     {file = "sniffio-1.3.0-py3-none-any.whl", hash = "sha256:eecefdce1e5bbfb7ad2eeaabf7c1eeb404d7757c379bd1f7e5cce9d8bf425384"},
@@ -1734,14 +1734,14 @@ test = ["pytest", "pytest-cov"]
 
 [[package]]
 name = "starlette"
-version = "0.26.1"
+version = "0.27.0"
 description = "The little ASGI library that shines."
 category = "main"
 optional = true
 python-versions = ">=3.7"
 files = [
-    {file = "starlette-0.26.1-py3-none-any.whl", hash = "sha256:e87fce5d7cbdde34b76f0ac69013fd9d190d581d80681493016666e6f96c6d5e"},
-    {file = "starlette-0.26.1.tar.gz", hash = "sha256:41da799057ea8620e4667a3e69a5b1923ebd32b1819c8fa75634bbe8d8bea9bd"},
+    {file = "starlette-0.27.0-py3-none-any.whl", hash = "sha256:918416370e846586541235ccd38a474c08b80443ed31c578a418e2209b3eef91"},
+    {file = "starlette-0.27.0.tar.gz", hash = "sha256:6a6b0d042acb8d469a01eba54e9cda6cbd24ac602c4cd016723117d6a7e73b75"},
 ]
 
 [package.dependencies]
@@ -1927,9 +1927,9 @@ django = ["django"]
 falcon = ["falcon"]
 flask = ["flask"]
 requests = ["requests"]
-starlette = ["httpx", "starlette"]
+starlette = ["starlette"]
 
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.7.0"
-content-hash = "25e7a3003df7338145b2990d1221e75374e508a04240f237ea11f738d3826108"
+content-hash = "56acf0205ad89e18d4aa688cfad3678c234f2c3205fff07c07b21619be073aef"
diff --git a/pyproject.toml b/pyproject.toml
index 01a6d837..ca22622a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -71,7 +71,7 @@ jsonschema-spec = "^0.1.1"
 backports-cached-property = {version = "^1.0.2", python = "<3.8" }
 asgiref = "^3.6.0"
 jsonschema = "^4.17.3"
-starlette = {version = "^0.26.1", optional = true}
+starlette = {version = ">=0.26.1,<0.28.0", optional = true}
 
 [tool.poetry.extras]
 django = ["django"]