diff --git a/classification/model/ADDA/requirements.txt b/classification/model/ADDA/requirements.txt
index aa6c50f..2dd4f55 100644
--- a/classification/model/ADDA/requirements.txt
+++ b/classification/model/ADDA/requirements.txt
@@ -2,7 +2,7 @@ numpy==1.12.0
 tensorflow_gpu==1.0.0
 click==6.7
 tqdm==4.11.2
-PyYAML==3.12
+PyYAML==5.4
 colorlog==2.10.0
 requests==2.13.0
 scipy==0.19.0