diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,9 @@
 # Changelog for persistent-mysql
 
+## 2.10.2
+
+* Added support for GHC 8.8 [#977](https://github.com/yesodweb/persistent/pull/977)
+
 ## 2.10.1
 
 * Added `constraint=` attribute to allow users to specify foreign reference constraint names.
diff --git a/Database/Persist/MySQL.hs b/Database/Persist/MySQL.hs
--- a/Database/Persist/MySQL.hs
+++ b/Database/Persist/MySQL.hs
@@ -37,7 +37,7 @@
 import Control.Monad.IO.Unlift (MonadUnliftIO)
 import Control.Monad.Logger (MonadLogger, runNoLoggingT)
 import Control.Monad.Trans.Class (lift)
-import Control.Monad.Trans.Except (runExceptT)
+import Control.Monad.Trans.Except (ExceptT, runExceptT)
 import Control.Monad.Trans.Reader (runReaderT, ReaderT)
 import Control.Monad.Trans.Writer (runWriterT)
 
@@ -627,7 +627,7 @@
 
 -- | Parse the type of column as returned by MySQL's
 -- @INFORMATION_SCHEMA@ tables.
-parseColumnType :: Monad m => Text -> ColumnInfo -> m (SqlType, Maybe Integer)
+parseColumnType :: Text -> ColumnInfo -> ExceptT String IO (SqlType, Maybe Integer)
 -- Ints
 parseColumnType "tinyint" ci | ciColumnType ci == "tinyint(1)" = return (SqlBool, Nothing)
 parseColumnType "int" ci | ciColumnType ci == "int(11)"        = return (SqlInt32, Nothing)
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:         2.10.1
+version:         2.10.2
 license:         MIT
 license-file:    LICENSE
 author:          Felipe Lessa <felipe.lessa@gmail.com>, Michael Snoyman