diff --git a/src/digital.rs b/src/digital.rs
index 8f49da3d9..b2fcf5e1f 100644
--- a/src/digital.rs
+++ b/src/digital.rs
@@ -109,9 +109,6 @@ pub mod toggleable {
 }
 
 /// Single digital input pin
-///
-/// *This trait is available if embedded-hal is built with the `"unproven"` feature.*
-#[cfg(feature = "unproven")]
 pub trait InputPin {
     /// Is the input pin high?
     fn is_high(&self) -> bool;