diff --git a/pyproject.toml b/pyproject.toml
index 064caeb..bb69bc3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,6 +10,7 @@ requires-python = ">=3.13"
 dependencies = [
     "megasniff>=0.2.0",
     "breakshaft>=0.1.0",
+    "case-insensitive-dictionary>=0.2.1",
 ]
 
 [tool.uv.sources]
diff --git a/src/turbosloth/types.py b/src/turbosloth/types.py
index b4e16a2..cc014fb 100644
--- a/src/turbosloth/types.py
+++ b/src/turbosloth/types.py
@@ -6,6 +6,8 @@ from typing import Callable, Awaitable, Dict, Literal, Any, TypeVar
 
 import urllib.parse
 
+from case_insensitive_dict.case_insensitive_dict import CaseInsensitiveDict
+
 type Scope = Dict
 type Receive = Callable[[], Awaitable[Dict]]
 type Send = Callable[[Dict], Awaitable[None]]
@@ -31,7 +33,7 @@ V = TypeVar('V')
 class BasicRequest:
     method: str
     path: str
-    headers: dict[str, str]
+    headers: CaseInsensitiveDict[str, str]
     query: dict[str, list[str] | str]
     body: dict[str, Any]
 
@@ -39,7 +41,7 @@ class BasicRequest:
     def from_scope(cls, scope: Scope) -> BasicRequest:
         path = scope['path']
         method = scope['method']
-        headers = {}
+        headers = CaseInsensitiveDict()
         for key, value in scope.get('headers', []):
             headers[key.decode('latin1')] = value.decode('latin1')
 
@@ -60,7 +62,7 @@ class BasicRequest:
 @dataclass
 class BasicResponse:
     code: int
-    headers: dict[str, str]
+    headers: CaseInsensitiveDict[str, str]
     body: bytes
 
     def into_start_message(self) -> dict:
diff --git a/uv.lock b/uv.lock
index 88f079b..6097818 100644
--- a/uv.lock
+++ b/uv.lock
@@ -15,6 +15,15 @@ wheels = [
     { url = "https://git.nikto-b.ru/api/packages/nikto_b/pypi/files/breakshaft/0.1.0/breakshaft-0.1.0-py3-none-any.whl", hash = "sha256:e7c8831e5889fbcd788d59fee05f7aee113663ebef9273cd280893e1ed04f5c2" },
 ]
 
+[[package]]
+name = "case-insensitive-dictionary"
+version = "0.2.1"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/01/5e/8de464e77e2bb6f0b47f2ac94f75cd46f4f14ba55529619e68ae5e81443e/case-insensitive-dictionary-0.2.1.tar.gz", hash = "sha256:7e94726f97eb2c0ceac53209971db50ffc996def663e5e5080d0a1acb4a42280", size = 5938, upload-time = "2022-10-18T10:35:30.298Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/9e/94/2a5f43133bfd07d8c826f5fe277d54fb6c45c0c2ac5df3bc71c2ba8ff4ea/case_insensitive_dictionary-0.2.1-py3-none-any.whl", hash = "sha256:a8971780be1ba25e363db259515f0a2f003013465f82552e2f9aed08d5a9ca28", size = 6060, upload-time = "2022-10-18T10:35:31.701Z" },
+]
+
 [[package]]
 name = "click"
 version = "8.2.1"
@@ -234,6 +243,7 @@ version = "0.1.0"
 source = { editable = "." }
 dependencies = [
     { name = "breakshaft" },
+    { name = "case-insensitive-dictionary" },
     { name = "megasniff" },
 ]
 
@@ -247,6 +257,7 @@ dev = [
 [package.metadata]
 requires-dist = [
     { name = "breakshaft", specifier = ">=0.1.0", index = "https://git.nikto-b.ru/api/packages/nikto_b/pypi/simple" },
+    { name = "case-insensitive-dictionary", specifier = ">=0.2.1" },
     { name = "megasniff", specifier = ">=0.2.0", index = "https://git.nikto-b.ru/api/packages/nikto_b/pypi/simple" },
 ]