diff --git a/changelog.md b/changelog.md
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,11 @@
 # Revision history for sv-core
 
+## 0.5 -- 2019-08-13
+
+* Change Decode to use lazy Writer.
+  This allows the many combinator to work in infinite cases, such as the useful
+  pattern `many ignore`, which ignores the rest of the columns.
+
 ## 0.4.1 -- 2019-04-02
 
 * Add `displayErrors`, which pretty prints `DecodeErrors`.
diff --git a/src/Data/Sv/Decode/Core.hs b/src/Data/Sv/Decode/Core.hs
--- a/src/Data/Sv/Decode/Core.hs
+++ b/src/Data/Sv/Decode/Core.hs
@@ -132,7 +132,7 @@
 import Control.Monad (unless)
 import Control.Monad.Reader (ReaderT (ReaderT, runReaderT))
 import Control.Monad.State (state)
-import Control.Monad.Writer.Strict (runWriter)
+import Control.Monad.Writer (runWriter)
 import qualified Data.Attoparsec.ByteString as A
 import qualified Data.Attoparsec.ByteString.Char8 as AC8
 import Data.Bifunctor (first, second)
diff --git a/src/Data/Sv/Decode/Type.hs b/src/Data/Sv/Decode/Type.hs
--- a/src/Data/Sv/Decode/Type.hs
+++ b/src/Data/Sv/Decode/Type.hs
@@ -30,7 +30,7 @@
 import Control.DeepSeq (NFData)
 import Control.Monad.Reader (ReaderT (ReaderT, runReaderT), MonadReader, withReaderT)
 import Control.Monad.State (State, runState, state, MonadState)
-import Control.Monad.Writer.Strict (Writer, writer, runWriter)
+import Control.Monad.Writer (Writer, writer, runWriter)
 import Data.Functor.Alt (Alt ((<!>)))
 import Data.Functor.Apply (Apply)
 import Data.Functor.Bind (Bind ((>>-)))
diff --git a/sv-core.cabal b/sv-core.cabal
--- a/sv-core.cabal
+++ b/sv-core.cabal
@@ -1,5 +1,5 @@
 name:                sv-core
-version:             0.4.1
+version:             0.5
 license:             BSD3
 license-file:        LICENCE
 author:              George Wilson
@@ -25,11 +25,10 @@
 build-type:          Simple
 extra-source-files:  changelog.md
 cabal-version:       >=1.10
-tested-with:         GHC == 7.10.3
-                     , GHC == 8.0.2
+tested-with:         GHC == 8.0.2
                      , GHC == 8.2.2
                      , GHC == 8.4.4
-                     , GHC == 8.6.4
+                     , GHC == 8.6.5
 
 source-repository    head
   type:              git
@@ -49,7 +48,7 @@
   other-modules:       Data.Sv.Alien.Containers
   -- other-extensions:    
   build-depends:       attoparsec >= 0.12.1.4 && < 0.14
-                       , base >=4.8 && < 4.13
+                       , base >=4.9 && < 4.13
                        , bifunctors >= 5.1 && < 5.6
                        , bytestring >= 0.9.1.10 && < 0.11
                        , containers >= 0.4 && < 0.7
@@ -59,15 +58,15 @@
                        , lens >= 4 && < 4.18
                        , mtl >= 2.0.1 && < 2.3
                        , parsec >= 3.1 && < 3.2
-                       , profunctors >= 5.2.1 && < 5.4
+                       , profunctors >= 5.2.1 && < 5.5
                        , readable >= 0.3 && < 0.4
                        , semigroupoids >= 5 && < 5.4
-                       , semigroups >= 0.18 && < 0.19
+                       , semigroups >= 0.18 && < 0.20
                        , text >= 1.0 && < 1.3
                        , transformers >= 0.2 && < 0.6
                        , trifecta >= 1.5 && < 2.1
                        , utf8-string >= 1 && < 1.1
-                       , validation >= 1 && < 1.1
+                       , validation >= 1 && < 1.2
                        , vector >= 0.10 && < 0.13
                        , void >= 0.6 && < 0.8
   hs-source-dirs:      src
@@ -85,16 +84,16 @@
   default-language:
                        Haskell2010
   build-depends:
-                       base >=4.8 && < 4.13
+                       base >=4.9 && < 4.13
                        , bytestring >= 0.9.1.10 && < 0.11
                        , semigroupoids >= 5 && < 5.4
                        , sv-core
-                       , profunctors >= 5 && < 5.4
-                       , semigroups >= 0.18 && < 0.19
+                       , profunctors >= 5 && < 5.5
+                       , semigroups >= 0.18 && < 0.20
                        , tasty >= 0.11 && < 1.3
                        , tasty-quickcheck >= 0.9 && < 0.11
                        , text >= 1.0 && < 1.3
-                       , validation >= 1 && < 1.1
+                       , validation >= 1 && < 1.2
                        , vector >= 0.10 && < 0.13
                        , QuickCheck >= 2.10 && < 2.14
   ghc-options: