diff --git a/pyproject.toml b/pyproject.toml
index a2a106754..46b38664c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -32,7 +32,7 @@ classifiers = [
 dependencies = [
     "aioquic_mitmproxy>=0.9.20,<0.10",
     "asgiref>=3.2.10,<3.8",
-    "Brotli>=1.0,<1.1",
+    "Brotli>=1.0,<1.2",
     "certifi>=2019.9.11",  # no semver here - this should always be on the last release!
     "cryptography>=38.0,<41.1",
     "flask>=1.1.1,<3.1",