diff --git a/Step-3-DeepQLearning/requirements.txt b/Step-3-DeepQLearning/requirements.txt
index b73880e..62c1ec5 100644
--- a/Step-3-DeepQLearning/requirements.txt
+++ b/Step-3-DeepQLearning/requirements.txt
@@ -3,4 +3,5 @@ gym
 keras-rl
 theano
 pymunk
-pyglet
\ No newline at end of file
+pyglet
+pillow>=8.2.0 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file