diff --git a/ggplot/stats/smoothers.py b/ggplot/stats/smoothers.py
index 5a8fbf37..2198a3f8 100644
--- a/ggplot/stats/smoothers.py
+++ b/ggplot/stats/smoothers.py
@@ -1,7 +1,7 @@
 from __future__ import (absolute_import, division, print_function,
                         unicode_literals)
 import numpy as np
-from pandas.lib import Timestamp
+from pandas import Timestamp
 import pandas as pd
 import statsmodels.api as sm
 from statsmodels.nonparametric.smoothers_lowess import lowess as smlowess
@@ -11,7 +11,7 @@
 import datetime
 
 date_types = (
-    pd.tslib.Timestamp,
+    pd.Timestamp,
     pd.DatetimeIndex,
     pd.Period,
     pd.PeriodIndex,
diff --git a/ggplot/utils.py b/ggplot/utils.py
index d0d5dfb6..6c9a92f7 100644
--- a/ggplot/utils.py
+++ b/ggplot/utils.py
@@ -78,7 +78,7 @@ def is_iterable(obj):
         return False
 
 date_types = (
-    pd.tslib.Timestamp,
+    pd.Timestamp,
     pd.DatetimeIndex,
     pd.Period,
     pd.PeriodIndex,