diff --git a/Project.toml b/Project.toml
index 3644138..6ed7298 100644
--- a/Project.toml
+++ b/Project.toml
@@ -7,7 +7,7 @@ IntervalArithmetic = "d1acc4aa-44c8-5952-acd4-ba5d80a2a253"
 
 [compat]
 IntervalArithmetic = "0.16, 0.17, 0.18"
-julia = "≥ 1.1"
+julia = "1.3, 1.4, 1.5"
 
 [extras]
 Documenter = "e30172f5-a6a5-5a46-863b-614d45cd2de4"