diff --git a/Cargo.toml b/Cargo.toml
index 05e16c6..a6b8bc0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,7 +8,7 @@ categories = [ "science" ]
 license = "MIT/Apache-2.0"
 name = "num-derive"
 repository = "https://github.com/rust-num/num-derive"
-version = "0.2.0"
+version = "0.2.1"
 readme = "README.md"
 
 [dependencies]
diff --git a/RELEASES.md b/RELEASES.md
index 5281b1a..4d84952 100644
--- a/RELEASES.md
+++ b/RELEASES.md
@@ -1,3 +1,9 @@
+# Release 0.2.1
+
+- [Updated dependencies][12] -- thanks @spearman!
+
+[12]: https://github.com/rust-num/num-derive/pull/12
+
 # Release 0.2.0
 
 - [Discriminant matching is now simplified][10], casting values directly by