diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## [0.2.0.2] - 2022-07-21
+
+### Added
+
+* Support for the `discriminatedUnionCodec` for discriminated unions in `autodocodec-0.2.0.0`
+
 ## [0.2.0.1] - 2022-04-28
 
 ### Changed
diff --git a/LICENSE b/LICENSE
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2021 Tom Sydney Kerckhove
+Copyright (c) 2021-2022 Tom Sydney Kerckhove
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/autodocodec-yaml.cabal b/autodocodec-yaml.cabal
--- a/autodocodec-yaml.cabal
+++ b/autodocodec-yaml.cabal
@@ -5,7 +5,7 @@
 -- see: https://github.com/sol/hpack
 
 name:           autodocodec-yaml
-version:        0.2.0.0
+version:        0.2.0.2
 synopsis:       Autodocodec interpreters for yaml
 homepage:       https://github.com/NorfairKing/autodocodec#readme
 bug-reports:    https://github.com/NorfairKing/autodocodec/issues
@@ -34,7 +34,7 @@
   hs-source-dirs:
       src
   build-depends:
-      autodocodec
+      autodocodec >=0.2.0.0
     , autodocodec-schema >=0.1.0.0
     , base >=4.7 && <5
     , bytestring
diff --git a/src/Autodocodec/Yaml/Encode.hs b/src/Autodocodec/Yaml/Encode.hs
--- a/src/Autodocodec/Yaml/Encode.hs
+++ b/src/Autodocodec/Yaml/Encode.hs
@@ -64,6 +64,10 @@
       EitherCodec _ c1 c2 -> case (a :: Either _ _) of
         Left a1 -> goObject a1 c1
         Right a2 -> goObject a2 c2
+      DiscriminatedUnionCodec propertyName m _ ->
+        case m a of
+          (discriminatorValue, c) ->
+            (propertyName, Yaml.string discriminatorValue) : goObject a c
       PureCodec _ -> []
       ApCodec oc1 oc2 -> goObject a oc1 <> goObject a oc2