diff --git a/Project.toml b/Project.toml
index 983e9ae..11599ff 100644
--- a/Project.toml
+++ b/Project.toml
@@ -9,7 +9,7 @@ JSON3 = "0f8b85d8-7281-11e9-16c2-39a750bddbf1"
 
 [compat]
 GeoInterface = "0.4, 0.5"
-JSON3 = "0.1.5"
+JSON3 = "0.1.5, 1.0"
 julia = "1"
 
 [extras]