diff --git a/Cargo.lock b/Cargo.lock
index 1e5a177..3e6a2bd 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -684,6 +684,7 @@ dependencies = [
  "pretty_env_logger 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
  "structopt 0.2.15 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
diff --git a/Cargo.toml b/Cargo.toml
index 83a6e03..33df8bb 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,4 +14,5 @@ openssl-probe = "0.1.2"
 pretty_env_logger = "0.3.0"
 serde = "1.0.90"
 serde_derive = "1.0.90"
+serde_json = "1.0.39"
 structopt = "0.2.15"