diff --git a/tutorials/3-advanced-topics/DTAT331_sequences.ipynb b/tutorials/3-advanced-topics/DTAT331_sequences.ipynb
index 1c4f35ca..04cee37b 100644
--- a/tutorials/3-advanced-topics/DTAT331_sequences.ipynb
+++ b/tutorials/3-advanced-topics/DTAT331_sequences.ipynb
@@ -6,7 +6,7 @@
    "source": [
     "# DTAT331. deeptrack.sequences\n",
     "\n",
-    "<a href=\"https://colab.research.google.com/github/DeepTrackAI/DeepTrack2/blob/develop/tutorials/3-advanced-topics/DTAT341_sequences.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/></a>"
+    "<a href=\"https://colab.research.google.com/github/DeepTrackAI/DeepTrack2/blob/develop/tutorials/3-advanced-topics/DTAT331_sequences.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/></a>"
    ]
   },
   {
diff --git a/tutorials/3-advanced-topics/DTAT361_sources.base.ipynb b/tutorials/3-advanced-topics/DTAT361_sources.base.ipynb
index 6d5fb7a5..2e90beaa 100644
--- a/tutorials/3-advanced-topics/DTAT361_sources.base.ipynb
+++ b/tutorials/3-advanced-topics/DTAT361_sources.base.ipynb
@@ -6,7 +6,7 @@
    "source": [
     "# DTAT361. deeptrack.sources.base\n",
     "\n",
-    "<a href=\"https://colab.research.google.com/github/DeepTrackAI/DeepTrack2/blob/develop/tutorials/3-advanced-topics/DTAT361.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/></a>"
+    "<a href=\"https://colab.research.google.com/github/DeepTrackAI/DeepTrack2/blob/develop/tutorials/3-advanced-topics/DTAT361_sources.base.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/></a>"
    ]
   },
   {
diff --git a/tutorials/3-advanced-topics/DTAT366_pytorch.features.ipynb b/tutorials/3-advanced-topics/DTAT366_pytorch.features.ipynb
index 2c653db7..093cb514 100644
--- a/tutorials/3-advanced-topics/DTAT366_pytorch.features.ipynb
+++ b/tutorials/3-advanced-topics/DTAT366_pytorch.features.ipynb
@@ -11,13 +11,22 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 1,
+   "execution_count": null,
    "metadata": {},
    "outputs": [],
    "source": [
     "# !pip install deeptrack  # Uncomment if running on Colab/Kaggle."
    ]
   },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# !pip install torch  # Uncomment if needed."
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},
diff --git a/tutorials/3-advanced-topics/DTAT367_pytorch.data.ipynb b/tutorials/3-advanced-topics/DTAT367_pytorch.data.ipynb
index 1f2137da..a85c3132 100644
--- a/tutorials/3-advanced-topics/DTAT367_pytorch.data.ipynb
+++ b/tutorials/3-advanced-topics/DTAT367_pytorch.data.ipynb
@@ -11,13 +11,23 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 1,
+   "execution_count": null,
    "metadata": {},
    "outputs": [],
    "source": [
     "# !pip install deeptrack  # Uncomment if running on Colab/Kaggle."
    ]
   },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# !pip install torch        # Uncomment if needed.\n",
+    "# !pip install torchvision  # Uncomment if needed."
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},
diff --git a/tutorials/3-advanced-topics/DTAT393_backend.units.ipynb b/tutorials/3-advanced-topics/DTAT393_backend.units.ipynb
index 28d3916b..f4316456 100644
--- a/tutorials/3-advanced-topics/DTAT393_backend.units.ipynb
+++ b/tutorials/3-advanced-topics/DTAT393_backend.units.ipynb
@@ -6,7 +6,7 @@
    "source": [
     "# DTAT393. deeptrack.backend.units\n",
     "\n",
-    "<a href=\"https://colab.research.google.com/github/DeepTrackAI/DeepTrack2/blob/develop/tutorials/3-advanced-topics/units.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/></a>"
+    "<a href=\"https://colab.research.google.com/github/DeepTrackAI/DeepTrack2/blob/develop/tutorials/3-advanced-topics/DTAT393_backend.units.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/></a>"
    ]
   },
   {
diff --git a/tutorials/3-advanced-topics/DTAT394_backend.polynomials.ipynb b/tutorials/3-advanced-topics/DTAT394_backend.polynomials.ipynb
index 251aa52e..be24a3e9 100644
--- a/tutorials/3-advanced-topics/DTAT394_backend.polynomials.ipynb
+++ b/tutorials/3-advanced-topics/DTAT394_backend.polynomials.ipynb
@@ -6,7 +6,7 @@
    "source": [
     "# deeptrack.backend.polynomials\n",
     "\n",
-    "<a href=\"https://colab.research.google.com/github/DeepTrackAI/DeepTrack2/blob/develop/tutorials/3-advanced-topics/DTAT394_polynomials.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/></a>"
+    "<a href=\"https://colab.research.google.com/github/DeepTrackAI/DeepTrack2/blob/develop/tutorials/3-advanced-topics/DTAT394_backend.polynomials.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/></a>"
    ]
   },
   {