diff --git a/test/test-alpine-app/requirements.txt b/test/test-alpine-app/requirements.txt
index c587cd2..92c41f2 100644
--- a/test/test-alpine-app/requirements.txt
+++ b/test/test-alpine-app/requirements.txt
@@ -1,3 +1,3 @@
 cryptography==2.1.2
 Eve==0.7.4
-PyYAML==3.12
+PyYAML==5.4