diff --git a/yesod-core/ChangeLog.md b/yesod-core/ChangeLog.md
index 43266e77..cef7c582 100644
--- a/yesod-core/ChangeLog.md
+++ b/yesod-core/ChangeLog.md
@@ -1,3 +1,7 @@
+## 1.4.37.3
+
+* Fix Haddock comment & simplify implementation for `contentTypeTypes` [#1476](https://github.com/yesodweb/yesod/issues/1476)
+
 ## 1.4.37.2
 
 * Improve error messages for the CSRF checking functions [#1455](https://github.com/yesodweb/yesod/issues/1455)
diff --git a/yesod-core/yesod-core.cabal b/yesod-core/yesod-core.cabal
index c1d6f8a8..c808eab0 100644
--- a/yesod-core/yesod-core.cabal
+++ b/yesod-core/yesod-core.cabal
@@ -1,5 +1,5 @@
 name:            yesod-core
-version:         1.4.37.2
+version:         1.4.37.3
 license:         MIT
 license-file:    LICENSE
 author:          Michael Snoyman <michael@snoyman.com>