diff --git a/Project.toml b/Project.toml
index 4d3be0b..16ad175 100644
--- a/Project.toml
+++ b/Project.toml
@@ -8,7 +8,7 @@ LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 
 [compat]
-julia = "1"
+julia = "1.4"
 
 [extras]
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"