diff --git a/lectures/lecture-02/codelab/code/requirements.txt b/lectures/lecture-02/codelab/code/requirements.txt
index e0c4dbc..5ce700f 100644
--- a/lectures/lecture-02/codelab/code/requirements.txt
+++ b/lectures/lecture-02/codelab/code/requirements.txt
@@ -14,7 +14,7 @@ pyasn1==0.3.4
 pycodestyle==2.3.1
 pyflakes==1.5.0
 python-dateutil==2.6.1
-PyYAML==3.12
+PyYAML==5.4
 requests==2.18.4
 rsa==3.4.2
 s3transfer==0.1.11