diff --git a/Project.toml b/Project.toml
index 76e935b..3fe0e35 100644
--- a/Project.toml
+++ b/Project.toml
@@ -45,6 +45,7 @@ CircularArrays = "1"
 ClassicalOrthogonalPolynomials = "0.13"
 Infinities = "0.1"
 IntervalSets = "0.7"
+IrrationalConstants = "0.2"
 QuasiArrays = "0.11"
 julia = "1"