diff --git a/setup.py b/setup.py
index bad54df34..2ee71f2ad 100755
--- a/setup.py
+++ b/setup.py
@@ -53,7 +53,7 @@ def get_packages(package):
 
 extra_requirements = [
     "websockets>=10.0",
-    "httptools>=0.2.0,<0.4.0",
+    "httptools>=0.4.0",
     "uvloop>=0.14.0,!=0.15.0,!=0.15.1; " + env_marker_cpython,
     "colorama>=0.4;" + env_marker_win,
     "watchgod>=0.6",