diff --git a/Project.toml b/Project.toml
index b3051d5..6b5a40b 100644
--- a/Project.toml
+++ b/Project.toml
@@ -27,6 +27,7 @@ Distributions = "<0.25.102, 0.25"
 GLM = "1.9.0"
 Parameters = "<0.12.4"
 StatsBase = "<0.34.3"
+julia = "1.9"
 
 [extras]
 NLopt = "76087f3c-5699-56af-9a33-bf431cd00edd"