diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,15 @@
 Changelog
 =========
 
+Version 0.2.4.1
+---------------
+
+*November 21, 2019*
+
+<https://github.com/mstksg/advent-of-code-api/releases/tag/v0.2.4.1>
+
+*   Export `DayInt` and `_DayInt` from *Advent* module
+
 Version 0.2.4.0
 ---------------
 
diff --git a/advent-of-code-api.cabal b/advent-of-code-api.cabal
--- a/advent-of-code-api.cabal
+++ b/advent-of-code-api.cabal
@@ -4,10 +4,10 @@
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: d214b34991e5cecf77b64cf62b556642dba8073ebe9565990fe8c3238b2eeeae
+-- hash: 538919b3907c1f6fb7ea04cba6bb88a2137e0861598c39f023ab26534ae8d54f
 
 name:           advent-of-code-api
-version:        0.2.4.0
+version:        0.2.4.1
 synopsis:       Advent of Code REST API bindings and servant API
 description:    Haskell bindings for Advent of Code REST API and a servant API.  Please use
                 responsibly! See README.md or "Advent" module for an introduction and
diff --git a/src/Advent.hs b/src/Advent.hs
--- a/src/Advent.hs
+++ b/src/Advent.hs
@@ -5,6 +5,7 @@
 {-# LANGUAGE KindSignatures     #-}
 {-# LANGUAGE LambdaCase         #-}
 {-# LANGUAGE OverloadedStrings  #-}
+{-# LANGUAGE PatternSynonyms    #-}
 {-# LANGUAGE RecordWildCards    #-}
 {-# LANGUAGE StandaloneDeriving #-}
 {-# LANGUAGE TupleSections      #-}
@@ -59,7 +60,7 @@
   , challengeReleased
   -- * Utility
   -- ** Day
-  , mkDay, mkDay_, dayInt
+  , mkDay, mkDay_, dayInt, pattern DayInt, _DayInt
   , aocDay
   -- ** Part
   , partChar, partInt