diff --git a/Cargo.toml b/Cargo.toml
index 61d357a..9d84202 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -27,6 +27,7 @@ supports-unicode = { version = "2.0.0", optional = true }
 backtrace = { version = "0.3.61", optional = true }
 terminal_size = { version = "0.1.17", optional = true }
 backtrace-ext = { version = "0.2.1", optional = true }
+serde = { version = "1.0.162", optional = true }
 
 [dev-dependencies]
 semver = "1.0.4"