diff --git a/Python/03_Image_Details.ipynb b/Python/03_Image_Details.ipynb
index 7a687cc5..e0bb0eef 100644
--- a/Python/03_Image_Details.ipynb
+++ b/Python/03_Image_Details.ipynb
@@ -1436,7 +1436,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "%matplotlib widget\n",
+    "%matplotlib ipympl\n",
     "import gui\n",
     "\n",
     "gui.RegistrationPointDataAquisition(\n",
diff --git a/Python/04_Image_Display.ipynb b/Python/04_Image_Display.ipynb
index 77e9ac82..a28c2639 100644
--- a/Python/04_Image_Display.ipynb
+++ b/Python/04_Image_Display.ipynb
@@ -57,7 +57,7 @@
    "source": [
     "import SimpleITK as sitk\n",
     "\n",
-    "%matplotlib widget\n",
+    "%matplotlib ipympl\n",
     "import matplotlib.pyplot as plt\n",
     "import gui\n",
     "\n",
diff --git a/Python/05_Results_Visualization.ipynb b/Python/05_Results_Visualization.ipynb
index 721e45ba..b63e49bb 100644
--- a/Python/05_Results_Visualization.ipynb
+++ b/Python/05_Results_Visualization.ipynb
@@ -70,7 +70,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "%matplotlib widget\n",
+    "%matplotlib ipympl\n",
     "\n",
     "import numpy as np\n",
     "import itertools\n",
diff --git a/Python/21_Transforms_and_Resampling.ipynb b/Python/21_Transforms_and_Resampling.ipynb
index ec9c83c1..47ae7833 100644
--- a/Python/21_Transforms_and_Resampling.ipynb
+++ b/Python/21_Transforms_and_Resampling.ipynb
@@ -774,7 +774,7 @@
    "outputs": [],
    "source": [
     "# Temporarily change the matplotlib back-end to enable mouse interaction\n",
-    "%matplotlib widget\n",
+    "%matplotlib ipympl\n",
     "intensity_profiles_image = sitk.ReadImage(fdata(\"training_001_ct.mha\"))\n",
     "point_gui = gui.PointDataAquisition(image=intensity_profiles_image);"
    ]
diff --git a/Python/30_Segmentation_Region_Growing.ipynb b/Python/30_Segmentation_Region_Growing.ipynb
index 2beea88f..e9694780 100644
--- a/Python/30_Segmentation_Region_Growing.ipynb
+++ b/Python/30_Segmentation_Region_Growing.ipynb
@@ -60,9 +60,9 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "# To use interactive plots (mouse clicks, zooming, panning) we use the notebook back end. We want our graphs\n",
-    "# to be embedded in the notebook, inline mode, this combination is defined by the magic \"%matplotlib widget\".\n",
-    "%matplotlib widget\n",
+    "# To use interactive plots (mouse clicks, zooming, panning) we use the ipympl back end. We want our graphs\n",
+    "# to be embedded in the notebook, inline mode, this combination is defined by the magic \"%matplotlib ipympl\".\n",
+    "%matplotlib ipympl\n",
     "\n",
     "import SimpleITK as sitk\n",
     "\n",
diff --git a/Python/33_Segmentation_Thresholding_Edge_Detection.ipynb b/Python/33_Segmentation_Thresholding_Edge_Detection.ipynb
index 0f67cfcb..6d71134c 100644
--- a/Python/33_Segmentation_Thresholding_Edge_Detection.ipynb
+++ b/Python/33_Segmentation_Thresholding_Edge_Detection.ipynb
@@ -67,7 +67,7 @@
     "%run update_path_to_download_script\n",
     "from downloaddata import fetch_data as fdata\n",
     "\n",
-    "%matplotlib widget\n",
+    "%matplotlib ipympl\n",
     "import gui\n",
     "import matplotlib.pyplot as plt\n",
     "\n",
diff --git a/Python/35_Segmentation_Shape_Analysis.ipynb b/Python/35_Segmentation_Shape_Analysis.ipynb
index 1c71aece..d007baa7 100644
--- a/Python/35_Segmentation_Shape_Analysis.ipynb
+++ b/Python/35_Segmentation_Shape_Analysis.ipynb
@@ -25,7 +25,7 @@
     "import SimpleITK as sitk\n",
     "import pandas as pd\n",
     "\n",
-    "%matplotlib widget\n",
+    "%matplotlib ipympl\n",
     "\n",
     "import matplotlib.pyplot as plt\n",
     "import gui\n",
diff --git a/Python/36_Microscopy_Colocalization_Distance_Analysis.ipynb b/Python/36_Microscopy_Colocalization_Distance_Analysis.ipynb
index 713dd1f6..333758fe 100644
--- a/Python/36_Microscopy_Colocalization_Distance_Analysis.ipynb
+++ b/Python/36_Microscopy_Colocalization_Distance_Analysis.ipynb
@@ -25,7 +25,7 @@
     "import numpy as np\n",
     "import pandas as pd\n",
     "\n",
-    "%matplotlib widget\n",
+    "%matplotlib ipympl\n",
     "import gui\n",
     "\n",
     "%run update_path_to_download_script\n",
diff --git a/Python/63_Registration_Initialization.ipynb b/Python/63_Registration_Initialization.ipynb
index e3858d1b..917ecc6f 100644
--- a/Python/63_Registration_Initialization.ipynb
+++ b/Python/63_Registration_Initialization.ipynb
@@ -62,7 +62,7 @@
     "%run update_path_to_download_script\n",
     "from downloaddata import fetch_data as fdata\n",
     "\n",
-    "%matplotlib widget\n",
+    "%matplotlib ipympl\n",
     "import gui\n",
     "\n",
     "\n",
diff --git a/Python/67_Registration_Semiautomatic_Homework.ipynb b/Python/67_Registration_Semiautomatic_Homework.ipynb
index 012ef38e..a1312344 100644
--- a/Python/67_Registration_Semiautomatic_Homework.ipynb
+++ b/Python/67_Registration_Semiautomatic_Homework.ipynb
@@ -70,9 +70,9 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "# To use interactive plots (mouse clicks, zooming, panning) we use the notebook back end. We want our graphs\n",
-    "# to be embedded in the notebook, inline mode, this combination is defined by the magic \"%matplotlib widget\".\n",
-    "%matplotlib widget\n",
+    "# To use interactive plots (mouse clicks, zooming, panning) we use the ipympl back end. We want our graphs\n",
+    "# to be embedded in the notebook, inline mode, this combination is defined by the magic \"%matplotlib ipympl\".\n",
+    "%matplotlib ipympl\n",
     "\n",
     "import numpy as np\n",
     "import SimpleITK as sitk\n",
diff --git a/Python/68_Registration_Errors.ipynb b/Python/68_Registration_Errors.ipynb
index 161d7d92..82f15e16 100644
--- a/Python/68_Registration_Errors.ipynb
+++ b/Python/68_Registration_Errors.ipynb
@@ -82,7 +82,7 @@
     "import numpy as np\n",
     "import copy\n",
     "\n",
-    "%matplotlib widget\n",
+    "%matplotlib ipympl\n",
     "from gui import PairedPointDataManipulation, display_errors\n",
     "import matplotlib.pyplot as plt\n",
     "from registration_utilities import registration_errors"
diff --git a/Python/69_x-ray-panorama.ipynb b/Python/69_x-ray-panorama.ipynb
index 2ed024b6..83f5c34c 100755
--- a/Python/69_x-ray-panorama.ipynb
+++ b/Python/69_x-ray-panorama.ipynb
@@ -80,7 +80,7 @@
     "import os.path\n",
     "import copy\n",
     "\n",
-    "%matplotlib widget\n",
+    "%matplotlib ipympl\n",
     "import gui\n",
     "import matplotlib.pyplot as plt\n",
     "\n",
diff --git a/Python/70_Data_Augmentation.ipynb b/Python/70_Data_Augmentation.ipynb
index 6cfcc93d..385a6ef2 100755
--- a/Python/70_Data_Augmentation.ipynb
+++ b/Python/70_Data_Augmentation.ipynb
@@ -60,7 +60,7 @@
     "import SimpleITK as sitk\n",
     "import numpy as np\n",
     "\n",
-    "%matplotlib widget\n",
+    "%matplotlib ipympl\n",
     "import gui\n",
     "\n",
     "# utility method that either downloads data from the Girder repository or\n",
diff --git a/Python/71_Trust_But_Verify.ipynb b/Python/71_Trust_But_Verify.ipynb
index 51116781..afc13d0c 100644
--- a/Python/71_Trust_But_Verify.ipynb
+++ b/Python/71_Trust_But_Verify.ipynb
@@ -71,7 +71,7 @@
     "import hashlib\n",
     "import tempfile\n",
     "\n",
-    "%matplotlib widget\n",
+    "%matplotlib ipympl\n",
     "import matplotlib.pyplot as plt\n",
     "import ipywidgets as widgets\n",
     "\n",
diff --git a/tests/additional_dictionary.txt b/tests/additional_dictionary.txt
index 7dd32576..c9ff423d 100644
--- a/tests/additional_dictionary.txt
+++ b/tests/additional_dictionary.txt
@@ -1,3 +1,4 @@
+ipympl
 ACM
 ANTSNeighborhoodCorrelation
 API