diff --git a/Project.toml b/Project.toml
index 93b95098..f6bf1c45 100644
--- a/Project.toml
+++ b/Project.toml
@@ -40,7 +40,7 @@ FunctionChains = "0.1"
 IfElse = "0.1"
 IntervalSets = "0.7"
 InverseFunctions = "0.1.8"
-IrrationalConstants = "0.1"
+IrrationalConstants = "0.1, 0.2"
 LogExpFunctions = "0.3"
 LogarithmicNumbers = "1"
 MappedArrays = "0.4"