diff --git a/Project.toml b/Project.toml
index 5c9c15f..1a7dcdf 100644
--- a/Project.toml
+++ b/Project.toml
@@ -21,7 +21,7 @@ Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 ApproxFun = "0.11.8, 0.12, 0.13"
 ApproxFunBase = "0.2.3, 0.3, 0.4.4, 0.5, 0.6, 0.7"
 ApproxFunFourier = "0.2, 0.3"
-ApproxFunOrthogonalPolynomials = "0.3, 0.4, 0.5"
+ApproxFunOrthogonalPolynomials = "0.3, 0.4, 0.5, 0.6"
 ApproxFunSingularities = "0.1.6, 0.2, 0.3"
 BandedMatrices = "0.14.2, 0.15, 0.16, 0.17"
 DomainSets = "0.1, 0.2, 0.3, 0.4, 0.5, 0.6"