diff --git a/gst-plugin-audiofx/Cargo.toml b/gst-plugin-audiofx/Cargo.toml
index ec3b9599b..d04416839 100644
--- a/gst-plugin-audiofx/Cargo.toml
+++ b/gst-plugin-audiofx/Cargo.toml
@@ -12,7 +12,7 @@ glib = { git = "https://github.com/gtk-rs/glib" }
 gstreamer = { git = "https://github.com/sdroege/gstreamer-rs" }
 gstreamer-base = { git = "https://github.com/sdroege/gstreamer-rs" }
 gstreamer-audio = { git = "https://github.com/sdroege/gstreamer-rs" }
-byte-slice-cast = "0.1"
+byte-slice-cast = "0.2"
 num-traits = "0.2"
 
 [lib]
diff --git a/gst-plugin-audiofx/src/audioecho.rs b/gst-plugin-audiofx/src/audioecho.rs
index 92bfc6ab1..8e96135d5 100644
--- a/gst-plugin-audiofx/src/audioecho.rs
+++ b/gst-plugin-audiofx/src/audioecho.rs
@@ -245,11 +245,11 @@ impl BaseTransformImpl<BaseTransform> for AudioEcho {
 
         match state.info.format() {
             gst_audio::AUDIO_FORMAT_F64 => {
-                let data = map.as_mut_slice().as_mut_slice_of::<f64>().unwrap();
+                let data = map.as_mut_slice_of::<f64>().unwrap();
                 Self::process(data, state, &settings);
             }
             gst_audio::AUDIO_FORMAT_F32 => {
-                let data = map.as_mut_slice().as_mut_slice_of::<f32>().unwrap();
+                let data = map.as_mut_slice_of::<f32>().unwrap();
                 Self::process(data, state, &settings);
             }
             _ => return gst::FlowReturn::NotNegotiated,
diff --git a/gst-plugin-tutorial/Cargo.toml b/gst-plugin-tutorial/Cargo.toml
index 5c6c4e843..ac30022d3 100644
--- a/gst-plugin-tutorial/Cargo.toml
+++ b/gst-plugin-tutorial/Cargo.toml
@@ -13,7 +13,7 @@ gstreamer = { git = "https://github.com/sdroege/gstreamer-rs" }
 gstreamer-base = { git = "https://github.com/sdroege/gstreamer-rs" }
 gstreamer-video = { git = "https://github.com/sdroege/gstreamer-rs" }
 gstreamer-audio = { git = "https://github.com/sdroege/gstreamer-rs" }
-byte-slice-cast = "0.1"
+byte-slice-cast = "0.2"
 num-traits = "0.2"
 
 [lib]