diff --git a/rig-core/src/lib.rs b/rig-core/src/lib.rs
index 98086a02..3d5ee62b 100644
--- a/rig-core/src/lib.rs
+++ b/rig-core/src/lib.rs
@@ -73,7 +73,7 @@ pub mod cli_chatbot;
 pub mod completion;
 pub mod embeddings;
 pub mod extractor;
-pub mod json_utils;
+pub(crate) mod json_utils;
 pub mod providers;
 pub mod tool;
 pub mod vector_store;