diff --git a/rustyline-derive/Cargo.toml b/rustyline-derive/Cargo.toml
index e2295e22b..0527f6ea3 100644
--- a/rustyline-derive/Cargo.toml
+++ b/rustyline-derive/Cargo.toml
@@ -19,5 +19,5 @@ maintenance = { status = "actively-developed" }
 proc-macro = true
 
 [dependencies]
-syn = "1.0"
-quote = "1.0"
+syn = { version = "1.0", default-features = false, features = ["derive", "parsing", "printing", "proc-macro"] }
+quote = { version = "1.0", default-features = false }