diff --git a/Project.toml b/Project.toml
index 3b12fb8b..c692eac4 100644
--- a/Project.toml
+++ b/Project.toml
@@ -28,7 +28,7 @@ ForwardDiff = "0.10"
 HypergeometricFunctions = "0.3.8"
 InvertedIndices = "1.1"
 LoopVectorization = "0.12"
-Polynomials = "2.0.24, 3"
+Polynomials = "2.0.24, 3, 4"
 RecipesBase = "1.2"
 SciMLBase = "1"
 SpecialFunctions = "1.6.2, 2"