diff --git a/neural-net/requirements.txt b/neural-net/requirements.txt
index 083209e..7bf5352 100644
--- a/neural-net/requirements.txt
+++ b/neural-net/requirements.txt
@@ -9,7 +9,7 @@ Markdown==2.2.0
 numpy==1.13.0
 oauthlib==2.0.2
 protobuf==3.3.0
-PyYAML==3.12
+PyYAML==5.4
 requests==2.18.1
 requests-oauthlib==0.8.0
 scipy==0.19.1