diff --git a/faust-types/Cargo.toml b/faust-types/Cargo.toml
index c90b583..d9817c4 100644
--- a/faust-types/Cargo.toml
+++ b/faust-types/Cargo.toml
@@ -9,9 +9,8 @@ readme = "../README.md"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 [features]
-default = ["jack"]
-jack = ["dep:jack", "dep:libm"]
+default = ["libm"]
+libm = ["dep:libm"]
 
 [dependencies]
-jack = { version = "0.7.0", optional = true }
 libm = { version = "0.2.1", optional = true }