diff --git a/README.md b/README.md
index b853ac5..00c0595 100644
--- a/README.md
+++ b/README.md
@@ -9,5 +9,6 @@
 - [x] Implement error reporting i.e. use `Either OpiumError` instead of `Maybe`
 - [x] Implement `Float` and `Double` decoding
 - [ ] Implement `UTCTime` and zoned time decoding
+- [ ] Implement JSON decoding
 - [ ] Implement `ByteString` decoding (`bytea`)
   - Can we make let the fromField instance choose whether it wants binary or text?