diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## [0.0.0.3] - 2026-07-14
+
+### Changed
+
+* Lower bound on `autodocodec >=0.6`
+
 ## [0.0.0.2] - 2025-06-20
 
 ### Changed
diff --git a/autodocodec-servant-multipart.cabal b/autodocodec-servant-multipart.cabal
--- a/autodocodec-servant-multipart.cabal
+++ b/autodocodec-servant-multipart.cabal
@@ -1,11 +1,11 @@
 cabal-version: 1.12
 
--- This file has been generated from package.yaml by hpack version 0.36.1.
+-- This file has been generated from package.yaml by hpack version 0.38.3.
 --
 -- see: https://github.com/sol/hpack
 
 name:           autodocodec-servant-multipart
-version:        0.0.0.2
+version:        0.0.0.3
 synopsis:       Autodocodec interpreters for Servant Multipart
 homepage:       https://github.com/NorfairKing/autodocodec#readme
 bug-reports:    https://github.com/NorfairKing/autodocodec/issues
@@ -32,7 +32,7 @@
       src
   build-depends:
       aeson
-    , autodocodec >=0.5.0.0
+    , autodocodec >=0.6.0.0
     , base >=4.7 && <5
     , bytestring
     , servant-multipart
diff --git a/src/Autodocodec/Multipart.hs b/src/Autodocodec/Multipart.hs
--- a/src/Autodocodec/Multipart.hs
+++ b/src/Autodocodec/Multipart.hs
@@ -97,7 +97,7 @@
         case coerce a of
           True -> "True"
           False -> "False"
-      StringCodec _ -> coerce a
+      StringCodec _ _ -> coerce a
       vc ->
         let value = toJSONVia vc a
          in case value of
@@ -237,7 +237,7 @@
         "true" -> Right True
         "True" -> Right True
         _ -> Left $ "Unknown bool: " <> show t
-      StringCodec _ -> Right (coerce t)
+      StringCodec _ _ -> Right (coerce t)
       vc -> case JSON.parseEither (parseJSONVia vc) (JSON.String t) of
         Right a -> Right a
         Left _ -> do