diff --git a/requirements-dev.txt b/requirements-dev.txt
index 956e98a..958e732 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -7,7 +7,7 @@ bandit==1.7.5
 black==23.7.0
 isort==5.12.0
 docformatter==1.7.5
-mypy==1.4.1
+mypy==1.5.0
 pyright==1.1.321
 # stubs
 pandas-stubs==2.0.2.230605