diff --git a/Project.toml b/Project.toml
index 7a565c2..2314a56 100644
--- a/Project.toml
+++ b/Project.toml
@@ -17,7 +17,7 @@ Cobweb = "0.1.1"
 DefaultApplication = "1"
 EasyConfig = "0.1.3"
 JSON3 = "1.8"
-julia = "1"
+julia = "1.6"
 
 [extras]
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"