diff --git a/contrib/requirements/requirements.txt b/contrib/requirements/requirements.txt
index dea6decee..55226ac0d 100644
--- a/contrib/requirements/requirements.txt
+++ b/contrib/requirements/requirements.txt
@@ -5,7 +5,7 @@ protobuf
 dnspython
 qdarkstyle<2.7
 aiorpcx>=0.18,<0.19
-aiohttp>=3.3.0
+aiohttp>=3.3.0,<4.0.0
 aiohttp_socks
 certifi
 bitstring