diff --git a/.hash b/.hash
index 1d71691..15e1c4f 100644
--- a/.hash
+++ b/.hash
@@ -1,5 +1,5 @@
 ainotes.cls,d9b2afb
-cognition-and-neuroscience/module1,67b01c9
+cognition-and-neuroscience/module1,71b973f
 combinatorial-decision-making-and-optimization/module1,1ebcad4
 combinatorial-decision-making-and-optimization/module2,2ffce7d
 deep-learning,19c6975
diff --git a/cognition-and-neuroscience/module1/cn1.pdf b/cognition-and-neuroscience/module1/cn1.pdf
index 1500353..54c5ea8 100644
Binary files a/cognition-and-neuroscience/module1/cn1.pdf and b/cognition-and-neuroscience/module1/cn1.pdf differ