diff --git a/pyproject.toml b/pyproject.toml
index 2567e5a..3950d7a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -54,7 +54,7 @@ tests = [
     "proxy.py",
 ]
 dev = [
-    "mypy==1.18.2",
+    "mypy==1.19.0",
     "scmrepo[tests]",
     "types-certifi",
     "types-mock",