diff --git a/requirements.txt b/requirements.txt
index b32258d..c10954d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,3 +4,4 @@ ruamel.yaml; python_version > '3.4'
 python-magic; python_version > '3.4'
 packaging; python_version > '3.4'
 requests; python_version > '3.4'
+toml; python_version > '3.4'