diff --git a/requirements-dev.txt b/requirements-dev.txt
index 51423d9..92cfcc2 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,5 +1,5 @@
 certifi==2019.11.28
-chardet==3.0.4
+chardet==7.3.0
 coverage==4.5.4
 coveralls==1.10.0
 docopt==0.6.2