diff --git a/notebooks/03-gravity/fwd_gravity_anomaly_3d.ipynb b/notebooks/03-gravity/fwd_gravity_anomaly_3d.ipynb
index f7c8cb6a..d7bde829 100644
--- a/notebooks/03-gravity/fwd_gravity_anomaly_3d.ipynb
+++ b/notebooks/03-gravity/fwd_gravity_anomaly_3d.ipynb
@@ -76,6 +76,8 @@
    },
    "outputs": [],
    "source": [
+    "import os\n",
+    "\n",
     "# SimPEG functionality\n",
     "from simpeg.potential_fields import gravity\n",
     "from simpeg.utils import plot2Ddata, model_builder\n",
@@ -89,11 +91,9 @@
     "import numpy as np\n",
     "from scipy.interpolate import LinearNDInterpolator\n",
     "import matplotlib as mpl\n",
-    "\n",
-    "mpl.rcParams.update({\"font.size\": 14})\n",
     "import matplotlib.pyplot as plt\n",
-    "import os\n",
     "\n",
+    "mpl.rcParams.update({\"font.size\": 14})\n",
     "save_output = False  # Optional"
    ]
   },
diff --git a/notebooks/03-gravity/fwd_gravity_gradiometry_3d.ipynb b/notebooks/03-gravity/fwd_gravity_gradiometry_3d.ipynb
index d9460f6d..342fe40f 100644
--- a/notebooks/03-gravity/fwd_gravity_gradiometry_3d.ipynb
+++ b/notebooks/03-gravity/fwd_gravity_gradiometry_3d.ipynb
@@ -92,10 +92,9 @@
     "import numpy as np\n",
     "from scipy.interpolate import LinearNDInterpolator\n",
     "import matplotlib as mpl\n",
-    "\n",
-    "mpl.rcParams.update({\"font.size\": 14})\n",
     "import matplotlib.pyplot as plt\n",
     "\n",
+    "mpl.rcParams.update({\"font.size\": 14})\n",
     "save_output = False  # Optional"
    ]
   },
diff --git a/notebooks/04-magnetics/fwd_magnetics_induced_3d.ipynb b/notebooks/04-magnetics/fwd_magnetics_induced_3d.ipynb
index c7bc058d..e48fe135 100644
--- a/notebooks/04-magnetics/fwd_magnetics_induced_3d.ipynb
+++ b/notebooks/04-magnetics/fwd_magnetics_induced_3d.ipynb
@@ -77,6 +77,8 @@
    },
    "outputs": [],
    "source": [
+    "import os\n",
+    "\n",
     "# SimPEG functionality\n",
     "from simpeg.potential_fields import magnetics\n",
     "from simpeg.utils import plot2Ddata, model_builder\n",
@@ -90,11 +92,9 @@
     "import numpy as np\n",
     "from scipy.interpolate import LinearNDInterpolator\n",
     "import matplotlib as mpl\n",
-    "\n",
-    "mpl.rcParams.update({\"font.size\": 14})\n",
     "import matplotlib.pyplot as plt\n",
-    "import os\n",
     "\n",
+    "mpl.rcParams.update({\"font.size\": 14})\n",
     "save_output = False  # Optional"
    ]
   },
diff --git a/notebooks/04-magnetics/fwd_magnetics_mvi_3d.ipynb b/notebooks/04-magnetics/fwd_magnetics_mvi_3d.ipynb
index ab7517d8..70af2fdc 100644
--- a/notebooks/04-magnetics/fwd_magnetics_mvi_3d.ipynb
+++ b/notebooks/04-magnetics/fwd_magnetics_mvi_3d.ipynb
@@ -92,10 +92,9 @@
     "from scipy.interpolate import LinearNDInterpolator\n",
     "from scipy.constants import mu_0\n",
     "import matplotlib as mpl\n",
-    "\n",
-    "mpl.rcParams.update({\"font.size\": 14})\n",
     "import matplotlib.pyplot as plt\n",
     "\n",
+    "mpl.rcParams.update({\"font.size\": 14})\n",
     "save_output = False  # Optional"
    ]
   },
diff --git a/notebooks/12-pgi-inversion/plot_inv_1_joint_pf_pgi_full_info_tutorial.ipynb b/notebooks/12-pgi-inversion/plot_inv_1_joint_pf_pgi_full_info_tutorial.ipynb
index 2f1cc80c..6bd2197d 100644
--- a/notebooks/12-pgi-inversion/plot_inv_1_joint_pf_pgi_full_info_tutorial.ipynb
+++ b/notebooks/12-pgi-inversion/plot_inv_1_joint_pf_pgi_full_info_tutorial.ipynb
@@ -519,7 +519,8 @@
     "    covariance_type=\"diag\",  # diagonal covariances\n",
     ")\n",
     "# required: initialization with fit\n",
-    "# fake random samples, size of the mesh, number of physical properties: 2 (density and mag.susc)\n",
+    "# fake random samples, size of the mesh,\n",
+    "# number of physical properties: 2 (density and mag.susc)\n",
     "rng = np.random.default_rng(seed=518936)\n",
     "gmmref.fit(rng.normal(size=(nactv, 2)))\n",
     "# set parameters manually\n",