diff --git a/Project.toml b/Project.toml
index 4eef3ac..b47cb46 100644
--- a/Project.toml
+++ b/Project.toml
@@ -16,4 +16,5 @@ Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 test = ["Test"]
 
 [compat]
+Dates = "<0.0.1, 1"
 julia = "^1.0.0"