diff --git a/requirements.txt b/requirements.txt
index 21cef433b..d3162e11b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,3 +16,4 @@ yarl==1.1.0
 idna<2.9,>=2.5
 aiohttp==3.7.3
 requests==2.25.1
+chardet<4.0