diff --git a/Project.toml b/Project.toml
index 5c58987..c5a08ab 100644
--- a/Project.toml
+++ b/Project.toml
@@ -11,7 +11,7 @@ Random = "<0.0.1, 1"
 Aqua = "0.8"
 Test = "<0.0.1, 1"
 Statistics = "<0.0.1, 1"
-Rmath_jll = "0.4"
+Rmath_jll = "0.4, 0.5"
 julia = "1.6"
 
 [extras]