diff --git a/.hash b/.hash
index fe452fc..dfa1f83 100644
--- a/.hash
+++ b/.hash
@@ -1,6 +1,6 @@
 ainotes.cls,9d6b6aa
 year1/cognition-and-neuroscience/module1,9d6b6aa
-year1/cognition-and-neuroscience/module2,9d6b6aa
+year1/cognition-and-neuroscience/module2,d292a24
 year1/combinatorial-decision-making-and-optimization/module1,9d6b6aa
 year1/combinatorial-decision-making-and-optimization/module2,9d6b6aa
 year1/deep-learning,ef7ba6f
diff --git a/year1/cognition-and-neuroscience/module2/cn2.pdf b/year1/cognition-and-neuroscience/module2/cn2.pdf
index ad8bafe..0ad8d0a 100644
Binary files a/year1/cognition-and-neuroscience/module2/cn2.pdf and b/year1/cognition-and-neuroscience/module2/cn2.pdf differ