diff --git a/.travis.yml b/.travis.yml
index 4432a37d..75fec5aa 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,6 @@
 language: rust
 rust:
-  - 1.26.0
+  - 1.27.0
   - stable
   - beta
   - nightly
diff --git a/audio/src/lewton_decoder.rs b/audio/src/lewton_decoder.rs
index 982ed157..912d1c27 100644
--- a/audio/src/lewton_decoder.rs
+++ b/audio/src/lewton_decoder.rs
@@ -75,7 +75,7 @@ impl error::Error for VorbisError {
         error::Error::description(&self.0)
     }
 
-    fn cause(&self) -> Option<&error::Error> {
-        error::Error::cause(&self.0)
+    fn source(&self) -> Option<&(dyn error::Error + 'static)> {
+        error::Error::source(&self.0)
     }
 }