diff --git a/lib/matplotlib/tests/test_cbook.py b/lib/matplotlib/tests/test_cbook.py
index eda0c3b7eb1b..aa5c999b7079 100644
--- a/lib/matplotlib/tests/test_cbook.py
+++ b/lib/matplotlib/tests/test_cbook.py
@@ -51,7 +51,7 @@ def test_rgba(self):
 
 
 class Test_boxplot_stats:
-    def setup(self):
+    def setup_method(self):
         np.random.seed(937)
         self.nrows = 37
         self.ncols = 4
@@ -177,7 +177,7 @@ def test_boxplot_stats_autorange_false(self):
 
 
 class Test_callback_registry:
-    def setup(self):
+    def setup_method(self):
         self.signal = 'test'
         self.callbacks = cbook.CallbackRegistry()
 
diff --git a/lib/matplotlib/tests/test_mlab.py b/lib/matplotlib/tests/test_mlab.py
index 75ca0648a4e1..86beb5c8c803 100644
--- a/lib/matplotlib/tests/test_mlab.py
+++ b/lib/matplotlib/tests/test_mlab.py
@@ -97,7 +97,7 @@ def test_window():
 
 
 class TestDetrend:
-    def setup(self):
+    def setup_method(self):
         np.random.seed(0)
         n = 1000
         x = np.linspace(0., 100, n)