diff --git a/CHANGES.markdown b/CHANGES.markdown
--- a/CHANGES.markdown
+++ b/CHANGES.markdown
@@ -1,3 +1,12 @@
+## Changes in 2.4.6
+  - compatibility with the upcoming version `4.11.0.0` of `base`
+
+## Changes in 2.4.5
+  - `hspec-discover`: Sort specs using natural sort order
+
+## Changes in 2.4.4
+  - Require quickcheck-io >= 0.2.0
+
 ## Changes in 2.4.3
   - Read command-line options from environment variable `HSPEC_OPTIONS`
 
diff --git a/hspec-core/src/Test/Hspec/Core/Runner.hs b/hspec-core/src/Test/Hspec/Core/Runner.hs
--- a/hspec-core/src/Test/Hspec/Core/Runner.hs
+++ b/hspec-core/src/Test/Hspec/Core/Runner.hs
@@ -228,4 +228,9 @@
 
 instance Monoid Summary where
   mempty = Summary 0 0
+#if !MIN_VERSION_base(4,11,0)
   (Summary x1 x2) `mappend` (Summary y1 y2) = Summary (x1 + y1) (x2 + y2)
+#else
+instance Semigroup Summary where
+  (Summary x1 x2) <> (Summary y1 y2) = Summary (x1 + y1) (x2 + y2)
+#endif
diff --git a/hspec-discover/src/Test/Hspec/Discover/Run.hs b/hspec-discover/src/Test/Hspec/Discover/Run.hs
--- a/hspec-discover/src/Test/Hspec/Discover/Run.hs
+++ b/hspec-discover/src/Test/Hspec/Discover/Run.hs
@@ -30,6 +30,7 @@
 import           System.FilePath hiding (combine)
 
 import           Test.Hspec.Discover.Config
+import           Test.Hspec.Discover.Sort
 
 instance IsString ShowS where
   fromString = showString
@@ -141,7 +142,8 @@
 isValidModuleChar c = isAlphaNum c || c == '_' || c == '\''
 
 getFilesRecursive :: FilePath -> IO [FilePath]
-getFilesRecursive baseDir = sort <$> go []
+getFilesRecursive baseDir = sortNaturally <$> go []
+
   where
     go :: FilePath -> IO [FilePath]
     go dir = do
diff --git a/hspec-discover/src/Test/Hspec/Discover/Sort.hs b/hspec-discover/src/Test/Hspec/Discover/Sort.hs
new file mode 100644
--- /dev/null
+++ b/hspec-discover/src/Test/Hspec/Discover/Sort.hs
@@ -0,0 +1,30 @@
+module Test.Hspec.Discover.Sort (
+  sortNaturally
+, NaturalSortKey
+, naturalSortKey
+) where
+
+import           Control.Arrow
+import           Data.Char
+import           Data.List
+import           Data.Ord
+
+sortNaturally :: [String] -> [String]
+sortNaturally = sortBy (comparing naturalSortKey)
+
+data NaturalSortKey = NaturalSortKey [Chunk]
+  deriving (Eq, Ord)
+
+data Chunk = Numeric Integer Int | Textual [(Char, Char)]
+  deriving (Eq, Ord)
+
+naturalSortKey :: String -> NaturalSortKey
+naturalSortKey = NaturalSortKey . chunks
+  where
+    chunks [] = []
+    chunks s@(c:_)
+      | isDigit c = Numeric (read num) (length num) : chunks afterNum
+      | otherwise = Textual (map (toLower &&& id) str) : chunks afterStr
+      where
+        (num, afterNum) = span  isDigit s
+        (str, afterStr) = break isDigit s
diff --git a/hspec-meta.cabal b/hspec-meta.cabal
--- a/hspec-meta.cabal
+++ b/hspec-meta.cabal
@@ -1,9 +1,11 @@
--- This file has been generated from package.yaml by hpack version 0.18.0.
+-- This file has been generated from package.yaml by hpack version 0.21.2.
 --
 -- see: https://github.com/sol/hpack
+--
+-- hash: a127653a989c7ff69649480ddd6226dd61f3e9eded4419b7214fa6deb0da8f7c
 
 name:             hspec-meta
-version:          2.4.4
+version:          2.4.6
 license:          MIT
 license-file:     LICENSE
 copyright:        (c) 2011-2017 Simon Hengel,
@@ -34,22 +36,22 @@
       hspec-core/src
       hspec-core/vendor/
   build-depends:
-      base == 4.*
-    , transformers >= 0.2.2.0
-    , QuickCheck >= 2.5.1
-    , hspec-expectations >= 0.8.0
-    , HUnit
-    , setenv
-    , deepseq
-    , random
-    , quickcheck-io
+      HUnit
+    , QuickCheck >=2.5.1
     , ansi-terminal
-    , time
+    , array
     , async
+    , base ==4.*
     , call-stack
-    , array
+    , deepseq
     , directory
     , filepath
+    , hspec-expectations >=0.8.0
+    , quickcheck-io
+    , random
+    , setenv
+    , time
+    , transformers >=0.2.2.0
   exposed-modules:
       Test.Hspec.Meta
   other-modules:
@@ -91,25 +93,25 @@
       hspec-discover/driver
   ghc-options: -Wall
   build-depends:
-      base == 4.*
-    , transformers >= 0.2.2.0
-    , QuickCheck >= 2.5.1
-    , hspec-expectations >= 0.8.0
-    , HUnit
-    , setenv
-    , deepseq
-    , random
-    , quickcheck-io
+      HUnit
+    , QuickCheck >=2.5.1
     , ansi-terminal
-    , time
+    , array
     , async
+    , base ==4.*
     , call-stack
-    , array
+    , deepseq
     , directory
     , filepath
-    , filepath
-    , directory
+    , hspec-expectations >=0.8.0
+    , quickcheck-io
+    , random
+    , setenv
+    , time
+    , transformers >=0.2.2.0
   other-modules:
       Test.Hspec.Discover.Config
       Test.Hspec.Discover.Run
+      Test.Hspec.Discover.Sort
+      Paths_hspec_meta
   default-language: Haskell2010