diff --git a/Project.toml b/Project.toml
index 4465bc4..a58e5b8 100644
--- a/Project.toml
+++ b/Project.toml
@@ -6,6 +6,6 @@ SolverCore = "ff4d7338-4cf1-434d-91df-b86cb86fb843"
 
 [compat]
 Franklin = "0.10"
-JSON = "0.21"
+JSON = "1"
 NodeJS = "1.3"
 SolverCore = "0.2"