diff --git a/DSR Lecture notebooks/Module 06 - Reinforcement Learning - Adam/practical/q_learning/requirements.txt b/DSR Lecture notebooks/Module 06 - Reinforcement Learning - Adam/practical/q_learning/requirements.txt
index a2934a2a..7403d0a5 100644
--- a/DSR Lecture notebooks/Module 06 - Reinforcement Learning - Adam/practical/q_learning/requirements.txt	
+++ b/DSR Lecture notebooks/Module 06 - Reinforcement Learning - Adam/practical/q_learning/requirements.txt	
@@ -7,7 +7,7 @@ decorator==4.2.1
 entrypoints==0.2.3
 enum34==1.1.6
 future==0.16.0
-html5lib==0.9999999
+html5lib==0.99999999
 idna==2.6
 ipykernel==4.8.0
 ipython==6.2.1