diff --git a/pandas/core/indexes/multi.py b/pandas/core/indexes/multi.py
index f40857059a794..cdde510927081 100644
--- a/pandas/core/indexes/multi.py
+++ b/pandas/core/indexes/multi.py
@@ -1088,9 +1088,7 @@ def _engine(self):
         # equivalent to sorting lexicographically the codes themselves. Notice
         # that each level needs to be shifted by the number of bits needed to
         # represent the _previous_ ones:
-        offsets = np.concatenate([lev_bits[1:], [0]]).astype(  # type: ignore[arg-type]
-            "uint64"
-        )
+        offsets = np.concatenate([lev_bits[1:], [0]]).astype("uint64")
 
         # Check the total number of bits needed for our representation:
         if lev_bits[0] > 64: