diff --git a/pyqtgraph/widgets/MatplotlibWidget.py b/pyqtgraph/widgets/MatplotlibWidget.py
index 959e188a..3de063fc 100644
--- a/pyqtgraph/widgets/MatplotlibWidget.py
+++ b/pyqtgraph/widgets/MatplotlibWidget.py
@@ -1,11 +1,16 @@
-from ..Qt import QtGui, QtCore, USE_PYSIDE
+from ..Qt import QtGui, QtCore, USE_PYSIDE, USE_PYQT5
 import matplotlib
 
-if USE_PYSIDE: 
-    matplotlib.rcParams['backend.qt4']='PySide'
+if not USE_PYQT5:
+    if USE_PYSIDE:
+        matplotlib.rcParams['backend.qt4']='PySide'
+
+    from matplotlib.backends.backend_qt4agg import FigureCanvasQTAgg as FigureCanvas
+    from matplotlib.backends.backend_qt4agg import NavigationToolbar2QTAgg as NavigationToolbar
+else:
+    from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas
+    from matplotlib.backends.backend_qt5agg import NavigationToolbar2QT as NavigationToolbar
 
-from matplotlib.backends.backend_qt4agg import FigureCanvasQTAgg as FigureCanvas
-from matplotlib.backends.backend_qt4agg import NavigationToolbar2QTAgg as NavigationToolbar
 from matplotlib.figure import Figure
 
 class MatplotlibWidget(QtGui.QWidget):