diff --git a/pandas/core/groupby/groupby.py b/pandas/core/groupby/groupby.py
index 422cf78bc927d..583fc6bf8ddb7 100644
--- a/pandas/core/groupby/groupby.py
+++ b/pandas/core/groupby/groupby.py
@@ -50,7 +50,7 @@ class providing the base-class of operations.
 from pandas.errors import AbstractMethodError
 from pandas.util._decorators import Appender, Substitution, cache_readonly, doc
 
-from pandas.core.dtypes.cast import maybe_cast_result, maybe_downcast_to_dtype
+from pandas.core.dtypes.cast import maybe_downcast_to_dtype
 from pandas.core.dtypes.common import (
     ensure_float,
     is_bool_dtype,