diff --git a/notebooks/cookbook/report_minimization.ipynb b/notebooks/cookbook/report_minimization.ipynb
index e8d3b77..9b155eb 100644
--- a/notebooks/cookbook/report_minimization.ipynb
+++ b/notebooks/cookbook/report_minimization.ipynb
@@ -7,7 +7,7 @@
    "source": [
     "## Reporting Minimization\n",
     "\n",
-    "You can report the status of [simulation.minimizeEnergy()](http://docs.openmm.org/latest/api-python/generated/openmm.app.simulation.Simulation.html?#openmm.app.simulation.Simulation.minimizeEnergy) using a [MinimizationReporter](http://docs.openmm.org/development/api-python/latest/openmm.openmm.MinimizationReporter.html). Note that `MinimizationReporter` was introduced in OpenMM 8.1.\n",
+    "You can report the status of [simulation.minimizeEnergy()](http://docs.openmm.org/latest/api-python/generated/openmm.app.simulation.Simulation.html?#openmm.app.simulation.Simulation.minimizeEnergy) using a [MinimizationReporter](http://docs.openmm.org/latest/api-python/generated/openmm.openmm.MinimizationReporter.html). Note that `MinimizationReporter` was introduced in OpenMM 8.1.\n",
     "\n",
     "The syntax for doing this is somewhat different to typical OpenMM functionality. You will need to define a subclass of `MinimizationReporter` that has a `report()` method. Within this report method you can write code to take any action you want. The report method is called every iteration of the minimizer. Read the [API documentation](http://docs.openmm.org/latest/api-python/generated/openmm.openmm.MinimizationReporter.html) for more explanation.\n",
     "\n",