diff --git a/requirements.txt b/requirements.txt
index b6a25b5..5fd2ecc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,4 +11,4 @@ theano==0.9.0
 scikit-image==0.13.0
 opencv-python==3.2.0.7
 Pillow==4.0.0
-PyYAML==3.12
\ No newline at end of file
+PyYAML==5.4
\ No newline at end of file