diff --git a/complex/Cargo.toml b/complex/Cargo.toml
index 31c0d61..1d8c56c 100644
--- a/complex/Cargo.toml
+++ b/complex/Cargo.toml
@@ -14,6 +14,7 @@ version = "0.1.32"
 [dependencies.num-traits]
 optional = false
 path = "../traits"
+version = "0.1.32"
 
 [dependencies.rustc-serialize]
 optional = true