diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2ed0ce0..ba5be22 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,12 @@
 **Note**: Gaps between patch versions are faulty/broken releases. **Note**: A feature tagged as Experimental is in a
 high state of flux, you're at risk of it changing without notice.
 
+# 0.3.1
+
+- **New Feature**
+  - add `KeysOfType` (@mattiamanzati)
+  - add `TaggedUnionMember` (@gcanti)
+
 # 0.3.0
 
 - **Breaking Change**
diff --git a/package.json b/package.json
index cdad874..04c5213 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "typelevel-ts",
-  "version": "0.3.0",
+  "version": "0.3.1",
   "description": "Type level programming in TypeScript",
   "files": [
     "lib"