diff --git a/episodes/profiling-functions.md b/episodes/profiling-functions.md
index b7cf902..ac78ca9 100644
--- a/episodes/profiling-functions.md
+++ b/episodes/profiling-functions.md
@@ -336,7 +336,9 @@ Other boxes within the diagram correspond to the initialisation of imports, or i
 
 ## Exercise 2: Predator Prey
 
-Download and profile <a href="files/pred-prey/predprey.py" download>the Python predator prey model</a>, try to locate the function call(s) where the majority of execution time is being spent. 
+Download and profile <a href="files/pred-prey/predprey.py" download>the Python predator prey model</a>, try to locate the function call(s) where the majority of execution time is being spent
+
+*This exercise uses the package `numpy`, it can be installed via `pip install numpy`.* 
 
 > The predator prey model is a simple agent-based model of population dynamics. Predators and prey co-exist in a common environment and compete over finite resources. 
 >
diff --git a/learners/setup.md b/learners/setup.md
index a251812..75b984a 100644
--- a/learners/setup.md
+++ b/learners/setup.md
@@ -22,10 +22,10 @@ This course uses Python and was developed using Python 3.11, therefore it is rec
 
 <!-- Todo suggest using a venv?-->
 
-The non-core Python packages required by the course are `pytest`, `snakeviz` and `line_profiler` which can be installed via `pip`.
+The non-core Python packages required by the course are `pytest`, `snakeviz`, `line_profiler` and `numpy` which can be installed via `pip`.
  
 ```sh
-pip install pytest snakeviz line_profiler[all]
+pip install pytest snakeviz line_profiler[all] numpy
 ```
 
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