diff --git a/dbmigrations.cabal b/dbmigrations.cabal
index 18e2fa2..9f91538 100644
--- a/dbmigrations.cabal
+++ b/dbmigrations.cabal
@@ -62,7 +62,6 @@ Source-Repository head
 
 Library
   default-language: Haskell2010
-  default-extensions: OverloadedStrings
   if impl(ghc >= 6.12.0)
     ghc-options: -Wall -fwarn-tabs -funbox-strict-fields
                  -fno-warn-unused-do-bind
@@ -108,7 +107,6 @@ Library
 
 test-suite dbmigrations-tests
   default-language: Haskell2010
-  default-extensions: OverloadedStrings
   type: exitcode-stdio-1.0
   Build-Depends:
     base >= 4 && < 5,
diff --git a/src/Database/Schema/Migrations/Backend.hs b/src/Database/Schema/Migrations/Backend.hs
index 5a086c4..ffee25e 100644
--- a/src/Database/Schema/Migrations/Backend.hs
+++ b/src/Database/Schema/Migrations/Backend.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE OverloadedStrings #-}
 module Database.Schema.Migrations.Backend
     ( Backend(..)
     , rootMigrationName
diff --git a/src/Database/Schema/Migrations/Backend/HDBC.hs b/src/Database/Schema/Migrations/Backend/HDBC.hs
index da80df5..55799bf 100644
--- a/src/Database/Schema/Migrations/Backend/HDBC.hs
+++ b/src/Database/Schema/Migrations/Backend/HDBC.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE OverloadedStrings #-}
 module Database.Schema.Migrations.Backend.HDBC
     ( hdbcBackend
     )
diff --git a/src/Database/Schema/Migrations/Dependencies.hs b/src/Database/Schema/Migrations/Dependencies.hs
index 6ea67f9..d596d58 100644
--- a/src/Database/Schema/Migrations/Dependencies.hs
+++ b/src/Database/Schema/Migrations/Dependencies.hs
@@ -1,4 +1,4 @@
-{-# LANGUAGE TypeSynonymInstances #-}
+{-# LANGUAGE TypeSynonymInstances, OverloadedStrings #-}
 -- |This module types and functions for representing a dependency
 -- graph of arbitrary objects and functions for querying such graphs
 -- to get dependency and reverse dependency information.
diff --git a/src/Database/Schema/Migrations/Filesystem.hs b/src/Database/Schema/Migrations/Filesystem.hs
index dd74ad5..838871b 100644
--- a/src/Database/Schema/Migrations/Filesystem.hs
+++ b/src/Database/Schema/Migrations/Filesystem.hs
@@ -1,4 +1,4 @@
-{-# LANGUAGE DeriveDataTypeable, ScopedTypeVariables #-}
+{-# LANGUAGE DeriveDataTypeable, ScopedTypeVariables, OverloadedStrings #-}
 -- |This module provides a type for interacting with a
 -- filesystem-backed 'MigrationStore'.
 module Database.Schema.Migrations.Filesystem
diff --git a/src/Database/Schema/Migrations/Filesystem/Serialize.hs b/src/Database/Schema/Migrations/Filesystem/Serialize.hs
index 22e4113..d5c4171 100644
--- a/src/Database/Schema/Migrations/Filesystem/Serialize.hs
+++ b/src/Database/Schema/Migrations/Filesystem/Serialize.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE OverloadedStrings #-}
 module Database.Schema.Migrations.Filesystem.Serialize
     ( serializeMigration
     )
diff --git a/src/Database/Schema/Migrations/Migration.hs b/src/Database/Schema/Migrations/Migration.hs
index 06db5f5..8222323 100644
--- a/src/Database/Schema/Migrations/Migration.hs
+++ b/src/Database/Schema/Migrations/Migration.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE OverloadedStrings #-}
 module Database.Schema.Migrations.Migration
     ( Migration(..)
     , newMigration
diff --git a/src/Moo/CommandUtils.hs b/src/Moo/CommandUtils.hs
index 7bd88e5..86677f1 100644
--- a/src/Moo/CommandUtils.hs
+++ b/src/Moo/CommandUtils.hs
@@ -1,4 +1,4 @@
-{-# LANGUAGE FlexibleContexts #-}
+{-# LANGUAGE FlexibleContexts, OverloadedStrings #-}
 module Moo.CommandUtils
        ( apply
        , confirmCreation
diff --git a/src/Moo/Main.hs b/src/Moo/Main.hs
index bc8c97f..259a4c4 100644
--- a/src/Moo/Main.hs
+++ b/src/Moo/Main.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE OverloadedStrings #-}
 module Moo.Main
     ( mainWithParameters
     , ExecutableParameters (..)
diff --git a/test/DependencyTest.hs b/test/DependencyTest.hs
index b53cac9..7bf1495 100644
--- a/test/DependencyTest.hs
+++ b/test/DependencyTest.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE OverloadedStrings #-}
 module DependencyTest
     ( tests
     )
diff --git a/test/FilesystemParseTest.hs b/test/FilesystemParseTest.hs
index 55d34ba..8cbf67b 100644
--- a/test/FilesystemParseTest.hs
+++ b/test/FilesystemParseTest.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE OverloadedStrings #-}
 module FilesystemParseTest
     ( tests
     )
diff --git a/test/FilesystemSerializeTest.hs b/test/FilesystemSerializeTest.hs
index 34e81cb..2510c27 100644
--- a/test/FilesystemSerializeTest.hs
+++ b/test/FilesystemSerializeTest.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE OverloadedStrings #-}
 module FilesystemSerializeTest
     ( tests
     )
diff --git a/test/FilesystemTest.hs b/test/FilesystemTest.hs
index 144d0e9..9240df9 100644
--- a/test/FilesystemTest.hs
+++ b/test/FilesystemTest.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE OverloadedStrings #-}
 module FilesystemTest
     ( tests
     )
diff --git a/test/LinearMigrationsTest.hs b/test/LinearMigrationsTest.hs
index 1e7d747..ab3649e 100644
--- a/test/LinearMigrationsTest.hs
+++ b/test/LinearMigrationsTest.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE OverloadedStrings #-}
 module LinearMigrationsTest (tests) where
 
 import           InMemoryStore
diff --git a/test/MigrationsTest.hs b/test/MigrationsTest.hs
index bb5aa32..a53a994 100644
--- a/test/MigrationsTest.hs
+++ b/test/MigrationsTest.hs
@@ -1,4 +1,4 @@
-{-# LANGUAGE TypeSynonymInstances,GeneralizedNewtypeDeriving,MultiParamTypeClasses,FlexibleInstances #-}
+{-# LANGUAGE TypeSynonymInstances,GeneralizedNewtypeDeriving,MultiParamTypeClasses,FlexibleInstances,OverloadedStrings #-}
 module MigrationsTest
     ( tests
     )
diff --git a/test/StoreTest.hs b/test/StoreTest.hs
index 465fd7d..4db956f 100644
--- a/test/StoreTest.hs
+++ b/test/StoreTest.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE OverloadedStrings #-}
 module StoreTest
     ( tests
     )
@@ -115,4 +116,4 @@ validateMigrationMapTests =
     map mkValidateMapTest validateMapTestCases
         where
           mkValidateMapTest (mmap, errs) =
-              errs ~=? validateMigrationMap mmap
\ No newline at end of file
+              errs ~=? validateMigrationMap mmap