diff --git a/VERSION b/VERSION
--- a/VERSION
+++ b/VERSION
@@ -1,3 +1,5 @@
+0.2.4.1 (2015.04.04):
+	- Data.Trie.Internal: adjusted imports to compule under GHC 7.10.1
 0.2.4 (2014.10.09):
     - added Data.Trie.Internal.{match_,matches_}, Data.Trie.Base.{match,matches}
 0.2.3 (2010.02.12):
diff --git a/bytestring-trie.cabal b/bytestring-trie.cabal
--- a/bytestring-trie.cabal
+++ b/bytestring-trie.cabal
@@ -1,5 +1,5 @@
 ----------------------------------------------------------------
--- wren gayle romano <wren@community.haskell.org>   ~ 2014.10.09
+-- wren gayle romano <wren@community.haskell.org>   ~ 2015.04.04
 ----------------------------------------------------------------
 
 -- By and large Cabal >=1.2 is fine; but >= 1.6 gives tested-with:
@@ -8,12 +8,12 @@
 Build-Type:     Simple
 
 Name:           bytestring-trie
-Version:        0.2.4
+Version:        0.2.4.1
 Stability:      provisional
 Homepage:       http://code.haskell.org/~wren/
 Author:         wren gayle romano
 Maintainer:     wren@community.haskell.org
-Copyright:      Copyright (c) 2008--2014 wren gayle romano
+Copyright:      Copyright (c) 2008--2015 wren gayle romano
 License:        BSD3
 License-File:   LICENSE
 
diff --git a/src/Data/Trie.hs b/src/Data/Trie.hs
--- a/src/Data/Trie.hs
+++ b/src/Data/Trie.hs
@@ -5,7 +5,7 @@
 --                                                  ~ 2014.10.09
 -- |
 -- Module      :  Data.Trie
--- Copyright   :  Copyright (c) 2008--2014 wren gayle romano
+-- Copyright   :  Copyright (c) 2008--2015 wren gayle romano
 -- License     :  BSD3
 -- Maintainer  :  wren@community.haskell.org
 -- Stability   :  experimental
diff --git a/src/Data/Trie/ByteStringInternal.hs b/src/Data/Trie/ByteStringInternal.hs
--- a/src/Data/Trie/ByteStringInternal.hs
+++ b/src/Data/Trie/ByteStringInternal.hs
@@ -15,7 +15,7 @@
 --                                                  ~ 2009.02.06
 -- |
 -- Module      :  Data.Trie.ByteStringInternal
--- Copyright   :  Copyright (c) 2008--2011 wren gayle romano
+-- Copyright   :  Copyright (c) 2008--2015 wren gayle romano
 -- License     :  BSD3
 -- Maintainer  :  wren@community.haskell.org
 -- Stability   :  experimental
diff --git a/src/Data/Trie/ByteStringInternal/indexOfDifference.c b/src/Data/Trie/ByteStringInternal/indexOfDifference.c
--- a/src/Data/Trie/ByteStringInternal/indexOfDifference.c
+++ b/src/Data/Trie/ByteStringInternal/indexOfDifference.c
@@ -2,7 +2,7 @@
 --                                                  ~ 2009.01.07
 -- |
 -- Module      :  Data.Trie.ByteStringInternal.indexOfDifference
--- Copyright   :  Copyright (c) 2008--2011 wren gayle romano
+-- Copyright   :  Copyright (c) 2008--2015 wren gayle romano
 -- License     :  BSD3
 -- Maintainer  :  wren@community.haskell.org
 -- Stability   :  beta
diff --git a/src/Data/Trie/Convenience.hs b/src/Data/Trie/Convenience.hs
--- a/src/Data/Trie/Convenience.hs
+++ b/src/Data/Trie/Convenience.hs
@@ -4,7 +4,7 @@
 --                                                  ~ 2011.02.12
 -- |
 -- Module      :  Data.Trie.Convenience
--- Copyright   :  Copyright (c) 2008--2011 wren gayle romano
+-- Copyright   :  Copyright (c) 2008--2015 wren gayle romano
 -- License     :  BSD3
 -- Maintainer  :  wren@community.haskell.org
 -- Stability   :  experimental
diff --git a/src/Data/Trie/Errors.hs b/src/Data/Trie/Errors.hs
--- a/src/Data/Trie/Errors.hs
+++ b/src/Data/Trie/Errors.hs
@@ -4,7 +4,7 @@
 --                                                  ~ 2011.02.12
 -- |
 -- Module      :  Data.Trie.Errors
--- Copyright   :  Copyright (c) 2008--2011 wren gayle romano
+-- Copyright   :  Copyright (c) 2008--2015 wren gayle romano
 -- License     :  BSD3
 -- Maintainer  :  wren@community.haskell.org
 -- Stability   :  experimental
diff --git a/src/Data/Trie/Internal.hs b/src/Data/Trie/Internal.hs
--- a/src/Data/Trie/Internal.hs
+++ b/src/Data/Trie/Internal.hs
@@ -9,7 +9,7 @@
 --                                                  ~ 2014.10.09
 -- |
 -- Module      :  Data.Trie.Internal
--- Copyright   :  Copyright (c) 2008--2014 wren gayle romano
+-- Copyright   :  Copyright (c) 2008--2015 wren gayle romano
 -- License     :  BSD3
 -- Maintainer  :  wren@community.haskell.org
 -- Stability   :  provisional
@@ -73,7 +73,7 @@
 #ifdef APPLICATIVE_IN_BASE
 import Control.Monad       (ap)
 import Control.Applicative (Applicative(..), (<$>))
-import Data.Foldable       (Foldable(..))
+import Data.Foldable       (Foldable(foldMap))
 import Data.Traversable    (Traversable(traverse))
 #endif