diff --git a/Project.toml b/Project.toml
index 5dbfa9fc..85922cc2 100644
--- a/Project.toml
+++ b/Project.toml
@@ -46,7 +46,7 @@ IterTools = "1"
 JSON = "0.18, 0.19, 0.20, 0.21"
 Juno = "0.7, 0.8"
 KernelDensity = "0.5, 0.6"
-Loess = "0.4, 0.5"
+Loess = "0.4, 0.5, 0.6"
 Measures = "0.3.2"
 Requires = "0.5, 1"
 Showoff = "0.2, 0.3, 1"