diff --git a/Project.toml b/Project.toml
index 08a523a6..d510812a 100644
--- a/Project.toml
+++ b/Project.toml
@@ -41,7 +41,7 @@ DelimitedFiles = "1.9.1"
 Downloads = "1.6.0"
 GeneticsMakie = "0.2.3"
 HTTP = "1.10.15"
-JSON = "0.21.4"
+JSON = "0.21.4, 1"
 Literate = "2.20.1"
 MLJBase = "1.8.1"
 Markdown = "1.11.0"