diff --git a/control_plotly/figures.py b/control_plotly/figures.py
index f098341..1d9c1c5 100644
--- a/control_plotly/figures.py
+++ b/control_plotly/figures.py
@@ -196,18 +196,18 @@ def add_plot(self,tf,label="sys"):
         line = dict(color=self.get_next_color())
         data  = []
 
-        poles = tf.pole()
+        poles = tf.poles()
         data_poles =  {
                     "x": np.real(poles),
                     "y": np.imag(poles),
                     "name": label,
                     "line": line,
-                    "hovertemplate": "<b>Pole<b><br><b>real</b>: %{x:.3f}<br><b>imag</b>: %{y:.3f}<br>",
+                    "hovertemplate": "<b>Poles<b><br><b>real</b>: %{x:.3f}<br><b>imag</b>: %{y:.3f}<br>",
                     "mode": "markers",
                     "marker": {"symbol": "x", "size": 8},
                 }
 
-        zeros = tf.zero()
+        zeros = tf.zeros()
         data_zeros =  {
             "x": np.real(zeros),
             "y": np.imag(zeros),
@@ -438,7 +438,7 @@ def add_plot(self,tf,k=np.logspace(-2,1.2,1000),label="sys"):
         poles = []
         for k_temp in k :
             tf_cl = ctl.feedback(k_temp*tf,1)
-            poles.append(tf_cl.pole())
+            poles.append(tf_cl.poles())
 
         #prepare_data
         poles = np.array(poles)
diff --git a/requirements.txt b/requirements.txt
index 3987472..3fc8770 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,2 @@
-control
+control>=0.10.2
 plotly==4.5.4