diff --git a/Project.toml b/Project.toml
index 405f670..c89c218 100644
--- a/Project.toml
+++ b/Project.toml
@@ -20,7 +20,7 @@ Trajectories = "2c80a279-213e-54d7-a557-e9a14725db56"
 [compat]
 Colors = "0.9, 0.10, 0.11, 0.12"
 Distributions = "0.22, 0.23"
-Polynomials = "0.6"
+Polynomials = "0.6, 0.7"
 RecipesBase = "0.7, 0.8, 1.0"
 StaticArrays = "0.12"
 Trajectories = "0.1, 0.2"