Specify package versions.

package.yaml

@@ -21,11 +21,11 @@ description:         Please see the README on Github at
 
 dependencies:
   - base >=4.7 && <5
-  - bytestring
+  - bytestring >=0.10.8.1 && <0.11
   - exceptions >=0.6 && <0.9
   - free >=4.12 && < 5
   - mtl >=2.2.1 && <2.3
-  - text
+  - text >=1.2.2.2 && <1.3
   - transformers >=0.4 && <0.6
 
 library:

postlude.cabal

@@ -2,7 +2,7 @@
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: 13d659fe8ecd81d67fd78960f36f07fa73797ddb1b931a27bfc3fcda98d924fc
+-- hash: fc6b86411535aa75c305ca8e5e3c4b1690cffe2f3b62d7e8505cfc487d68bca6
 
 name:           postlude
 version:        0.1.0.1
@@ -29,11 +29,11 @@ library
       src
   build-depends:
       base >=4.7 && <5
-    , bytestring
+    , bytestring >=0.10.8.1 && <0.11
     , exceptions >=0.6 && <0.9
     , free >=4.12 && <5
     , mtl >=2.2.1 && <2.3
-    , text
+    , text >=1.2.2.2 && <1.3
     , transformers >=0.4 && <0.6
   exposed-modules:
       Postlude

src/Postlude.hs

@@ -79,29 +79,29 @@ import Control.Monad.Writer as X
   )
 
 import Control.Monad.Trans.Except as X
-  ( Except -- ^ ExceptT e Identity :: * -> *
+  ( Except
   , ExceptT, ExceptT(ExceptT), runExceptT
   )
 
 import Control.Monad.Trans.Free as X
-  ( Free -- ^ FreeT f Identity :: * -> *
+  ( Free
   , FreeT, FreeT(FreeT), runFreeT
   )
 
 import Control.Monad.Trans.Reader as X
-  ( Reader -- ^ ReaderT r Identity :: * -> *
+  ( Reader
   , ReaderT, ReaderT(ReaderT), runReaderT
   )
 
 -- We default to the lazy implementation of State.
 import Control.Monad.Trans.State as X
-  ( State -- ^ StateT s Identity :: * -> *
+  ( State
   , StateT, StateT(StateT), runStateT
   )
 
 -- We default to the lazy implementation of Writer.
 import Control.Monad.Trans.Writer as X
-  ( Writer -- ^ WriterT w Identity :: * -> *
+  ( Writer
   , WriterT, WriterT(WriterT), runWriterT
   )