diff --git a/Cargo.toml b/Cargo.toml
index 4753d48..08cc427 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 
 name = "cpal"
-version = "0.0.19"
+version = "0.0.20"
 authors = ["Pierre Krieger <pierre.krieger1708@gmail.com>"]
 description = "Cross-platform audio playing library in pure Rust."
 repository = "https://github.com/tomaka/cpal"
diff --git a/alsa-sys/Cargo.toml b/alsa-sys/Cargo.toml
index 111b64e..ac4fc5f 100644
--- a/alsa-sys/Cargo.toml
+++ b/alsa-sys/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 
 name = "alsa-sys"
-version = "0.0.7"
+version = "0.0.8"
 authors = ["Pierre Krieger <pierre.krieger1708@gmail.com>"]
 build = "build.rs"
 description = "Bindings for the ALSA project (Advanced Linux Sound Architecture)"
diff --git a/src/samples_formats.rs b/src/samples_formats.rs
index d5d6287..8d4dfe9 100644
--- a/src/samples_formats.rs
+++ b/src/samples_formats.rs
@@ -24,7 +24,6 @@ impl SampleFormat {
 }
 
 /// Trait for containers that contain PCM data.
-#[unstable = "Will be rewritten with associated types"]
 pub trait Sample: Copy + Clone {
     fn get_format(Option<Self>) -> SampleFormat;