diff --git a/Codec.md b/Codec.md
index 0656973e..6ba988e2 100644
--- a/Codec.md
+++ b/Codec.md
@@ -38,7 +38,7 @@ const decoder: D.Decoder<unknown, number> = pipe(
   })
 )
 
-const encoder: E.Encoder<string, unknown> = {
+const encoder: E.Encoder<string, number> = {
   encode: String
 }
 
diff --git a/Decoder.md b/Decoder.md
index c4ef3acb..cf439b67 100644
--- a/Decoder.md
+++ b/Decoder.md
@@ -329,7 +329,7 @@ console.log(isRight(Positive.decode(-1))) // => false
 
 ## The `parse` combinator
 
-The `parse` combinator is more powerful than `refine` in that you can change the output type
+The `parse` combinator is more powerful than `refine` in that you can change the output value
 
 ```ts
 import { pipe } from 'fp-ts/function'