diff --git a/pyproject.toml b/pyproject.toml
index 8cbc167..bbb5408 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -13,7 +13,7 @@ license = "MIT"
 python = "^3.7"
 spotipy = "^2.18.0"
 spotify-model = {path = "../spotify_model", develop = true}
-PyYAML = "^5.4.1"
+PyYAML = "=5.3.1"
 
 [tool.poetry.dev-dependencies]
 pre-commit = "^2.13.0"