diff --git a/docs/source/examples/Futures.ipynb b/docs/source/examples/Futures.ipynb
index a5af5cf7..c089edba 100644
--- a/docs/source/examples/Futures.ipynb
+++ b/docs/source/examples/Futures.ipynb
@@ -186,7 +186,7 @@
    ],
    "source": [
     "f = rc[-1].apply(os.getpid)\n",
-    "f.add_done_callback(lambda _: print(\"I got PID: %i\" % _.result()))\n",
+    "f.add_done_callback(lambda _: print(f\"I got PID: {_.result()}\"))\n",
     "f.result()"
    ]
   },
@@ -602,7 +602,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.11.9"
+   "version": "3.11.10"
   },
   "widgets": {
    "application/vnd.jupyter.widget-state+json": {
diff --git a/docs/source/examples/Monitoring an MPI Simulation - 1.ipynb b/docs/source/examples/Monitoring an MPI Simulation - 1.ipynb
index 2b149205..b832343b 100644
--- a/docs/source/examples/Monitoring an MPI Simulation - 1.ipynb	
+++ b/docs/source/examples/Monitoring an MPI Simulation - 1.ipynb	
@@ -127,7 +127,7 @@
     "bcast = mpi.bcast\n",
     "barrier = mpi.barrier\n",
     "rank = mpi.rank\n",
-    "print(\"MPI rank: %i/%i\" % (mpi.rank, mpi.size))"
+    "print(f\"MPI rank: {mpi.rank}/{mpi.size}\")"
    ]
   },
   {
@@ -300,7 +300,7 @@
     "    nx, nyt, j, nsteps = view.pull(['nx', 'nyt', 'j', 'nsteps'], targets=0, block=True)\n",
     "    fig, ax = plt.subplots()\n",
     "    ax.contourf(Z)\n",
-    "    ax.set_title('Mesh: %i x %i, step %i/%i' % (nx, nyt, j + 1, nsteps))\n",
+    "    ax.set_title(f\"Mesh: {nx} x {nyt}, step {j + 1}/{nsteps}\")\n",
     "    plt.axis('off')\n",
     "    # We clear the notebook output before plotting this if in-place plot updating is requested\n",
     "    if in_place:\n",
@@ -566,7 +566,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.11.9"
+   "version": "3.11.10"
   },
   "widgets": {
    "application/vnd.jupyter.widget-state+json": {
diff --git a/docs/source/examples/Monitoring an MPI Simulation - 2.ipynb b/docs/source/examples/Monitoring an MPI Simulation - 2.ipynb
index 8c0c7d91..cca88ab4 100644
--- a/docs/source/examples/Monitoring an MPI Simulation - 2.ipynb	
+++ b/docs/source/examples/Monitoring an MPI Simulation - 2.ipynb	
@@ -119,7 +119,7 @@
     "bcast = mpi.bcast\n",
     "barrier = mpi.barrier\n",
     "rank = mpi.rank\n",
-    "print(\"MPI rank: %i/%i\" % (mpi.rank, mpi.size))"
+    "print(f\"MPI rank: {mpi.rank}/{mpi.size}\")"
    ]
   },
   {
@@ -270,7 +270,7 @@
     "    else:\n",
     "        fig, ax = plt.subplots()\n",
     "        ax.contourf(Z)\n",
-    "        ax.set_title(\"Mesh: %i x %i, step %i/%i\" % (nx, nyt, j + 1, nsteps))\n",
+    "        ax.set_title(f\"Mesh: {nx} x {nyt}, step {j + 1}/{nsteps}\")\n",
     "        plt.axis(\"off\")\n",
     "        # We clear the notebook output before plotting this if in-place\n",
     "        # plot updating is requested\n",
@@ -420,7 +420,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.11.9"
+   "version": "3.11.10"
   },
   "widgets": {
    "application/vnd.jupyter.widget-state+json": {
diff --git a/docs/source/examples/Using Dill.ipynb b/docs/source/examples/Using Dill.ipynb
index 75e6b515..26d794a2 100644
--- a/docs/source/examples/Using Dill.ipynb	
+++ b/docs/source/examples/Using Dill.ipynb	
@@ -44,7 +44,7 @@
     "\n",
     "    def has_closure(b):\n",
     "        product = a * b\n",
-    "        f.write(\"%i: %g\\n\" % (os.getpid(), product))\n",
+    "        f.write(f\"{os.getpid()}: {product:g}\\n\")\n",
     "        f.flush()\n",
     "        return product\n",
     "\n",
@@ -596,109 +596,11 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.11.9"
+   "version": "3.11.10"
   },
   "widgets": {
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-       "font_size": null,
-       "text_color": null
-      }
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-      "model_module": "@jupyter-widgets/base",
-      "model_module_version": "2.0.0",
-      "model_name": "LayoutModel",
-      "state": {}
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