diff --git a/Project.toml b/Project.toml
index c5903b5..903e1b0 100644
--- a/Project.toml
+++ b/Project.toml
@@ -23,8 +23,9 @@ DataEcon_jll = "0.2.2"
 MacroTools = "0.5"
 OrderedCollections = "1.4"
 RecipesBase = "1.0"
+Suppressor = "0.2"
 TOML = "1.0"
-julia = "1.0"
+julia = "1.7"
 
 [extras]
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"