diff --git a/requirements/dev.txt b/requirements/dev.txt
index c22b06a..348d439 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -1,7 +1,7 @@
 async-timeout==2.0.1
 brotlipy==0.7.0
 cchardet==2.1.1
-chardet==3.0.4
+chardet==5.2.0
 coverage==4.5.1
 cython==0.28.2
 flake8==3.5.0