diff --git a/pyproject.toml b/pyproject.toml
index 5e1a2da..c17cd1d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -85,7 +85,7 @@ dataframe = [
 ]
 develop = [
   "black[jupyter]<24",
-  "mypy==1.7.1",
+  "mypy==1.8.0",
   "poethepoet<1",
   "pyproject-fmt<1.6,>=1.3",
   "ruff==0.1.9",