diff --git a/python-package/xgboost/sklearn.py b/python-package/xgboost/sklearn.py
index 810574b88..7216f68f8 100644
--- a/python-package/xgboost/sklearn.py
+++ b/python-package/xgboost/sklearn.py
@@ -13,8 +13,6 @@ from .training import train
 from .compat import (SKLEARN_INSTALLED, XGBModelBase,
                      XGBClassifierBase, XGBRegressorBase, XGBLabelEncoder)
 
-warnings.simplefilter('always', DeprecationWarning)
-
 
 def _objective_decorator(func):
     """Decorate an objective function
diff --git a/tests/python/test_with_sklearn.py b/tests/python/test_with_sklearn.py
index 8d61217bb..27c51010f 100644
--- a/tests/python/test_with_sklearn.py
+++ b/tests/python/test_with_sklearn.py
@@ -2,7 +2,6 @@ import numpy as np
 import random
 import xgboost as xgb
 import testing as tm
-import warnings
 from nose.tools import raises
 
 rng = np.random.RandomState(1994)
@@ -340,14 +339,6 @@ def test_sklearn_random_state():
     assert clf.get_xgb_params()['seed'] == 401
 
 
-def test_seed_deprecation():
-    tm._skip_if_no_sklearn()
-    warnings.simplefilter("always")
-    with warnings.catch_warnings(record=True) as w:
-        xgb.XGBClassifier(seed=1).get_xgb_params()
-        assert w[0].category == DeprecationWarning
-
-
 def test_sklearn_n_jobs():
     tm._skip_if_no_sklearn()
 
@@ -358,14 +349,6 @@ def test_sklearn_n_jobs():
     assert clf.get_xgb_params()['nthread'] == 2
 
 
-def test_nthread_deprecation():
-    tm._skip_if_no_sklearn()
-    warnings.simplefilter("always")
-    with warnings.catch_warnings(record=True) as w:
-        xgb.XGBClassifier(nthread=1).get_xgb_params()
-        assert w[0].category == DeprecationWarning
-
-
 def test_kwargs():
     tm._skip_if_no_sklearn()