diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,3 +1,7 @@
+## 2.1.2.1
+
+Documentation typo fix
+
 ## 2.1.2
 
 Provide a `FromJSON` instance for `MySQLConf`.
diff --git a/Database/Persist/MySQL.hs b/Database/Persist/MySQL.hs
--- a/Database/Persist/MySQL.hs
+++ b/Database/Persist/MySQL.hs
@@ -68,7 +68,7 @@
 
 
 -- | Create a MySQL connection pool.  Note that it's your
--- responsability to properly close the connection pool when
+-- responsibility to properly close the connection pool when
 -- unneeded.  Use 'withMySQLPool' for automatic resource control.
 createMySQLPool :: (MonadBaseControl IO m, MonadIO m, MonadLogger m) =>
                    MySQL.ConnectInfo
diff --git a/persistent-mysql.cabal b/persistent-mysql.cabal
--- a/persistent-mysql.cabal
+++ b/persistent-mysql.cabal
@@ -1,5 +1,5 @@
 name:            persistent-mysql
-version:         2.1.2
+version:         2.1.2.1
 license:         MIT
 license-file:    LICENSE
 author:          Felipe Lessa <felipe.lessa@gmail.com>, Michael Snoyman