diff --git a/Cargo.toml b/Cargo.toml
index 48e2810f..e9dc676a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,4 +16,6 @@ failure = "0.1.3"
 phf = "0.7.23"  
 phf_macros = "0.7.23"  
 derive-new = "0.5.5" 
-
+serde = "1.0.80"                          # A generic serialization/deserialization framework
+serde_json = "1.0.32"                     # A JSON serialization file format
+serde_derive = "1.0.80"