diff --git a/requirements-dev.txt b/requirements-dev.txt
index 7a639e0..4f54f94 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -3,7 +3,7 @@ black==22.3.0
 coverage[toml]==6.2
 flake8==4.0.1
 flit==3.7.1
-mypy==0.950
+mypy==0.971
 sphinx==4.3.2
 usort==1.0.2
 sphinx-mdinclude==0.5.1