diff --git a/requirements.dev.txt b/requirements.dev.txt
index e4acb53f..7f7a99b0 100644
--- a/requirements.dev.txt
+++ b/requirements.dev.txt
@@ -13,7 +13,6 @@ mypy
 codecov
 pytest-cov
 pytest-mock
-asynctest
 flit
 markdown-include
 pygments