diff --git a/python/mypy.ini b/python/mypy.ini
index 01001daa6..5ef04daee 100644
--- a/python/mypy.ini
+++ b/python/mypy.ini
@@ -1,3 +1,5 @@
+[mypy]
+warn_redundant_casts = True
 [mypy-scipy.*]
 ignore_missing_imports = True
 [mypy-h5py.*]