diff --git a/Web/Scotty/Action.hs b/Web/Scotty/Action.hs
--- a/Web/Scotty/Action.hs
+++ b/Web/Scotty/Action.hs
@@ -43,16 +43,20 @@
 import qualified Data.ByteString.Lazy.Char8 as BL
 import qualified Data.CaseInsensitive       as CI
 import           Data.Default.Class         (def)
+import           Data.Int
 #if !(MIN_VERSION_base(4,8,0))
 import           Data.Monoid                (mconcat)
 #endif
 import qualified Data.Text                  as ST
 import qualified Data.Text.Lazy             as T
 import           Data.Text.Lazy.Encoding    (encodeUtf8)
+import           Data.Word
 
 import           Network.HTTP.Types
 import           Network.Wai
 
+import           Numeric.Natural
+
 import           Web.Scotty.Internal.Types
 import           Web.Scotty.Util
 
@@ -214,8 +218,20 @@
 
 instance Parsable Double where parseParam = readEither
 instance Parsable Float where parseParam = readEither
+
 instance Parsable Int where parseParam = readEither
+instance Parsable Int8 where parseParam = readEither
+instance Parsable Int16 where parseParam = readEither
+instance Parsable Int32 where parseParam = readEither
+instance Parsable Int64 where parseParam = readEither
 instance Parsable Integer where parseParam = readEither
+
+instance Parsable Word where parseParam = readEither
+instance Parsable Word8 where parseParam = readEither
+instance Parsable Word16 where parseParam = readEither
+instance Parsable Word32 where parseParam = readEither
+instance Parsable Word64 where parseParam = readEither
+instance Parsable Natural where parseParam = readEither
 
 -- | Useful for creating 'Parsable' instances for things that already implement 'Read'. Ex:
 --
diff --git a/Web/Scotty/Trans.hs b/Web/Scotty/Trans.hs
--- a/Web/Scotty/Trans.hs
+++ b/Web/Scotty/Trans.hs
@@ -125,5 +125,5 @@
 -- | Use given middleware. Middleware is nested such that the first declared
 -- is the outermost middleware (it has first dibs on the request and last action
 -- on the response). Every middleware is run on each request.
-middleware :: Monad m => Middleware -> ScottyT e m ()
+middleware :: Middleware -> ScottyT e m ()
 middleware = ScottyT . modify . addMiddleware
diff --git a/changelog.md b/changelog.md
--- a/changelog.md
+++ b/changelog.md
@@ -1,3 +1,9 @@
+## 0.10.1
+* `Parsable` instances for `Word`, `Word8`, `Word16`, `Word32`, `Word64`
+   [adamflott]
+* `Parsable` instances for `Int8`, `Int16`, `Int32`, `Int64`, and `Natural`
+* Removed redundant `Monad` constraint on `middleware`
+
 ## 0.10.0
 
 * The monad parameters to `ScottyT` have been decoupled, causing the type
@@ -27,7 +33,7 @@
 
 * Added streaming uploads via the `bodyReader` function, which retrieves chunks
   of the request body. [edofic]
-  - `ActionEnv` had a `getBodyChunk` field added (in 
+  - `ActionEnv` had a `getBodyChunk` field added (in
     `Web.Scotty.Internal.Types`)
   - `RequestBodyState` and `BodyPartiallyStreamed` added to
     `Web.Scotty.Internal.Types`
diff --git a/scotty.cabal b/scotty.cabal
--- a/scotty.cabal
+++ b/scotty.cabal
@@ -1,5 +1,5 @@
 Name:                scotty
-Version:             0.10.0
+Version:             0.10.1
 Synopsis:            Haskell web framework inspired by Ruby's Sinatra, using WAI and Warp
 Homepage:            https://github.com/scotty-web/scotty
 Bug-reports:         https://github.com/scotty-web/scotty/issues
@@ -77,6 +77,7 @@
                        http-types          >= 0.8.2    && < 0.9,
                        monad-control       >= 1.0.0.3  && < 1.1,
                        mtl                 >= 2.1.2    && < 2.3,
+                       nats                >= 0.1      && < 2,
                        network             >= 2.6.0.2  && < 2.7,
                        regex-compat        >= 0.95.1   && < 0.96,
                        text                >= 0.11.3.1 && < 1.3,
@@ -86,7 +87,7 @@
                        wai                 >= 3.0.0    && < 3.1,
                        wai-extra           >= 3.0.0    && < 3.1,
                        warp                >= 3.0.0    && < 3.1
-  
+
   GHC-options: -Wall -fno-warn-orphans
 
 test-suite spec