diff --git a/Cargo.toml b/Cargo.toml
index 5fdca50..ed0a326 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -17,7 +17,7 @@ utf8-width = "0.1"
 
 serde = { version = "1", default-features = false, features = ["alloc"], optional = true }
 rocket = { version = "0.5", optional = true }
-rust_decimal = { version = "1", default-features = false, optional = true }
+rust_decimal = { version = "1.15", default-features = false, optional = true }
 
 [dev-dependencies]
 serde_json = "1"