diff --git a/crates/dtrack-core/Cargo.toml b/crates/dtrack-core/Cargo.toml
index 3c45ac8..c41999a 100644
--- a/crates/dtrack-core/Cargo.toml
+++ b/crates/dtrack-core/Cargo.toml
@@ -9,4 +9,5 @@ dtrack-config = { path = "../dtrack-config" }
 # reqwest 0.13 nutzt per Default rustls (kein OpenSSL) -> musl-tauglich,
 # identisch zum Nazarick-Stack.
 reqwest = { version = "0.13", features = ["json"] }
+serde_json = "1"
 anyhow  = "1"