diff --git a/Cargo.toml b/Cargo.toml
index 126f7c4ac..77c26f06e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -23,7 +23,7 @@ path = "src/lib.rs"
 json_example = ["serde_json", "serde"]
 
 [dependencies]
-bigdecimal = { version = "0.2", features = ["serde"], optional = true }
+bigdecimal = { version = "0.3", features = ["serde"], optional = true }
 log = "0.4"
 serde = { version = "1.0", features = ["derive"], optional = true }
 # serde_json is only used in examples/cli, but we have to put it outside