diff --git a/Project.toml b/Project.toml
index c5c34524..5aa3c937 100644
--- a/Project.toml
+++ b/Project.toml
@@ -12,7 +12,7 @@ RecipesBase = "3cdcf5f2-1ef4-517c-9805-6587b60abb01"
 
 [compat]
 Intervals = "0.5, 1.0, 1.3"
-MutableArithmetics = "0.3"
+MutableArithmetics = "0.3, 1.0"
 RecipesBase = "0.7, 0.8, 1"
 julia = "1"