diff --git a/Cargo.toml b/Cargo.toml
index 4d825fb..033bbe0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -23,7 +23,7 @@ async-trait = "0.1"
 http = "1.1"
 reqwest = "0.12"
 secrecy = "0.8"
-serde = { version = "1.0", features = ["derive"] }
+serde = { version = "1.0.199", features = ["derive"] }
 serde_json = "1.0"
 serde-xml-rs = "0.6"
 thiserror = "1.0"