diff --git a/persistent-mysql-haskell/ChangeLog.md b/persistent-mysql-haskell/ChangeLog.md
index 529de5ca7..ab873fa36 100644
--- a/persistent-mysql-haskell/ChangeLog.md
+++ b/persistent-mysql-haskell/ChangeLog.md
@@ -1,5 +1,8 @@
 # ChangeLog for `persistent-mysql-haskell`
 
+## 0.6.1
+- Fix [#13](https://github.com/naushadh/persistent/pull/13) Make it build on nixos 20.09
+
 ## 0.6.0
 
 - Port [#977](https://github.com/yesodweb/persistent/pull/977) from `persistent-mysql`: Support Stackage Nightly
diff --git a/persistent-mysql-haskell/example/Main.hs b/persistent-mysql-haskell/example/Main.hs
index 1ab1660d9..9401a1a32 100644
--- a/persistent-mysql-haskell/example/Main.hs
+++ b/persistent-mysql-haskell/example/Main.hs
@@ -7,6 +7,8 @@
 {-# LANGUAGE QuasiQuotes                #-}
 {-# LANGUAGE TemplateHaskell            #-}
 {-# LANGUAGE TypeFamilies               #-}
+{-# LANGUAGE DerivingStrategies #-}
+{-# LANGUAGE StandaloneDeriving #-}
 
 -- | Taken from http://www.yesodweb.com/book/persistent.
 module Main where
diff --git a/persistent-mysql-haskell/persistent-mysql-haskell.cabal b/persistent-mysql-haskell/persistent-mysql-haskell.cabal
index d3706336f..840bab08a 100644
--- a/persistent-mysql-haskell/persistent-mysql-haskell.cabal
+++ b/persistent-mysql-haskell/persistent-mysql-haskell.cabal
@@ -1,5 +1,5 @@
 name:            persistent-mysql-haskell
-version:         0.6.0
+version:         0.6.1
 license:         MIT
 license-file:    LICENSE
 author:          Naushadh <naushadh@protonmail.com>, Felipe Lessa <felipe.lessa@gmail.com>, Michael Snoyman
@@ -43,7 +43,7 @@ library
                    , io-streams            >= 1.2     && < 2.0
                    , time                  >= 1.5.0
                    , network               >= 2.3     && < 4.0
-                   , tls                   >= 1.3.5   && < 1.5
+                   , tls                   >= 1.3.5   && < 2.0
     exposed-modules: Database.Persist.MySQL
     other-modules:   Database.Persist.MySQLConnectInfoShowInstance
     ghc-options:     -Wall
diff --git a/persistent-mysql-haskell/test/CustomConstraintTest.hs b/persistent-mysql-haskell/test/CustomConstraintTest.hs
index 40d7255cf..949e85756 100644
--- a/persistent-mysql-haskell/test/CustomConstraintTest.hs
+++ b/persistent-mysql-haskell/test/CustomConstraintTest.hs
@@ -8,6 +8,9 @@
 {-# LANGUAGE TemplateHaskell            #-}
 {-# LANGUAGE TypeFamilies               #-}
 {-# LANGUAGE UndecidableInstances       #-}
+{-# LANGUAGE DerivingStrategies #-}
+{-# LANGUAGE StandaloneDeriving #-}
+
 module CustomConstraintTest where
 
 import MyInit
diff --git a/persistent-mysql-haskell/test/InsertDuplicateUpdate.hs b/persistent-mysql-haskell/test/InsertDuplicateUpdate.hs
index 683c4a333..c4b61ce60 100644
--- a/persistent-mysql-haskell/test/InsertDuplicateUpdate.hs
+++ b/persistent-mysql-haskell/test/InsertDuplicateUpdate.hs
@@ -5,6 +5,9 @@
 {-# LANGUAGE TemplateHaskell #-}
 {-# LANGUAGE TypeFamilies #-}
 {-# LANGUAGE UndecidableInstances #-}
+{-# LANGUAGE DerivingStrategies #-}
+{-# LANGUAGE StandaloneDeriving #-}
+
 
 module InsertDuplicateUpdate where
 
@@ -141,4 +144,4 @@ specs = describe "DuplicateKeyUpdate" $ do
         []
         [ItemSizeSize +=. 1]
       dbItems <- selectList [] []
-      sort dbItems @== sort (map (\(Entity k v) -> Entity k (v { itemSizeSize = itemSizeSize v + 1 })) entities)
\ No newline at end of file
+      sort dbItems @== sort (map (\(Entity k v) -> Entity k (v { itemSizeSize = itemSizeSize v + 1 })) entities)
diff --git a/persistent-mysql-haskell/test/main.hs b/persistent-mysql-haskell/test/main.hs
index 6c76cf16d..540b7ba6c 100644
--- a/persistent-mysql-haskell/test/main.hs
+++ b/persistent-mysql-haskell/test/main.hs
@@ -5,8 +5,12 @@
 {-# LANGUAGE TemplateHaskell #-}
 {-# LANGUAGE TypeFamilies #-}
 {-# LANGUAGE UndecidableInstances #-}
+{-# LANGUAGE DerivingStrategies #-}
+{-# LANGUAGE GeneralizedNewtypeDeriving #-}
+{-# LANGUAGE StandaloneDeriving #-}
 {-# OPTIONS_GHC -Wno-unused-top-binds #-}
 
+
 import MyInit
 
 import Data.Time (Day, UTCTime (..), TimeOfDay, timeToTimeOfDay, timeOfDayToTime)