diff --git a/doc/source/analyzing/Particle_Trajectories.ipynb b/doc/source/analyzing/Particle_Trajectories.ipynb
index 20f97968933..12ad75c5cf5 100644
--- a/doc/source/analyzing/Particle_Trajectories.ipynb
+++ b/doc/source/analyzing/Particle_Trajectories.ipynb
@@ -21,8 +21,7 @@
     "import yt\n",
     "from yt.config import ytcfg\n",
     "path = ytcfg.get(\"yt\", \"test_data_dir\")\n",
-    "import matplotlib.pyplot as plt\n",
-    "from mpl_toolkits.mplot3d import Axes3D"
+    "import matplotlib.pyplot as plt"
    ]
   },
   {
@@ -388,4 +387,4 @@
  },
  "nbformat": 4,
  "nbformat_minor": 0
-}
+}
\ No newline at end of file
diff --git a/doc/source/visualizing/TransferFunctionHelper_Tutorial.ipynb b/doc/source/visualizing/TransferFunctionHelper_Tutorial.ipynb
index a00abd340b0..f88a4b21beb 100644
--- a/doc/source/visualizing/TransferFunctionHelper_Tutorial.ipynb
+++ b/doc/source/visualizing/TransferFunctionHelper_Tutorial.ipynb
@@ -21,7 +21,6 @@
     "import numpy as np\n",
     "from IPython.core.display import Image\n",
     "from yt.visualization.volume_rendering.transfer_function_helper import TransferFunctionHelper\n",
-    "from yt.visualization.volume_rendering.render_source import VolumeSource\n",
     "\n",
     "def showme(im):\n",
     "    # screen out NaNs\n",
@@ -239,4 +238,4 @@
  },
  "nbformat": 4,
  "nbformat_minor": 0
-}
+}
\ No newline at end of file
diff --git a/doc/source/visualizing/Volume_Rendering_Tutorial.ipynb b/doc/source/visualizing/Volume_Rendering_Tutorial.ipynb
index 62766865fea..bd9cc0485c5 100644
--- a/doc/source/visualizing/Volume_Rendering_Tutorial.ipynb
+++ b/doc/source/visualizing/Volume_Rendering_Tutorial.ipynb
@@ -33,7 +33,6 @@
    "outputs": [],
    "source": [
     "import yt\n",
-    "import numpy as np\n",
     "from yt.visualization.volume_rendering.transfer_function_helper import TransferFunctionHelper\n",
     "\n",
     "ds = yt.load(\"IsolatedGalaxy/galaxy0030/galaxy0030\")\n",
@@ -381,4 +380,4 @@
  },
  "nbformat": 4,
  "nbformat_minor": 1
-}
+}
\ No newline at end of file