diff --git a/Cargo.toml b/Cargo.toml
index 36457023d92..efaa00acd66 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -44,7 +44,6 @@ regex = "0.2"
 
 [dev-dependencies]
 compiletest_rs = "0.3.7"
-duct = "0.8.2"
 lazy_static = "1.0"
 serde_derive = "1.0"
 clippy-mini-macro-test = { version = "0.2", path = "mini-macro" }