diff --git a/Cargo.toml b/Cargo.toml
index bbf0861..0ccc74a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "md5"
-version = "0.5.0"
+version = "0.6.0"
 license = "Apache-2.0/MIT"
 authors = [
     "Ivan Ukhov <ivan.ukhov@gmail.com>",
diff --git a/src/lib.rs b/src/lib.rs
index d5cce6c..ee69cf0 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -84,7 +84,7 @@ implement!(LowerHex, "{:02x}");
 implement!(UpperHex, "{:02X}");
 
 /// A context.
-#[derive(Copy)]
+#[derive(Clone)]
 pub struct Context {
     buffer: [u8; 64],
     count: [u32; 2],
@@ -148,13 +148,6 @@ impl Context {
     }
 }
 
-impl Clone for Context {
-    #[inline]
-    fn clone(&self) -> Context {
-        *self
-    }
-}
-
 impl From<Context> for Digest {
     #[inline]
     fn from(context: Context) -> Digest {