diff --git a/lang/rust/Cargo.lock b/lang/rust/Cargo.lock
index b5d4f258c3d..71d74874c96 100644
--- a/lang/rust/Cargo.lock
+++ b/lang/rust/Cargo.lock
@@ -165,6 +165,7 @@ dependencies = [
  "num-bigint",
  "num-integer",
  "num-traits",
+ "serde",
 ]
 
 [[package]]
diff --git a/lang/rust/avro/Cargo.toml b/lang/rust/avro/Cargo.toml
index bfb2c957399..235a0fb0654 100644
--- a/lang/rust/avro/Cargo.toml
+++ b/lang/rust/avro/Cargo.toml
@@ -55,7 +55,7 @@ name = "single"
 
 [dependencies]
 apache-avro-derive = { default-features = false, version = "0.17.0", path = "../avro_derive", optional = true }
-bigdecimal = { default-features = false, version = "0.4.2", features = ["std"] }
+bigdecimal = { default-features = false, version = "0.4.2", features = ["std", "serde"] }
 bzip2 = { default-features = false, version = "0.4.4", optional = true }
 crc32fast = { default-features = false, version = "1.4.0", optional = true }
 digest = { default-features = false, version = "0.10.7", features = ["core-api"] }