diff --git a/Simulation/Aivika/Experiment/Histogram.hs b/Simulation/Aivika/Experiment/Histogram.hs
--- a/Simulation/Aivika/Experiment/Histogram.hs
+++ b/Simulation/Aivika/Experiment/Histogram.hs
@@ -122,7 +122,7 @@
 -- | It "rounds" every number into the closest number below it 
 -- that is divisible by size.
 bin :: Double -> [Double] -> [Double]
-bin size xs @ [_] = xs
+bin size xs@[_] = xs
 bin size xs = map (\x -> size * fromIntegral (floor (x / size)) + size / 2) xs
 
 -- | Combine bins from different histograms (optimized version).
@@ -139,11 +139,11 @@
         ordering  = sortBy  $ \(_, t1, _) (_, t2, _) -> compare t1 t2
         groupping = groupBy $ \(_, t1, _) (_, t2, _) -> t1 == t2
         sorting   = sortBy  $ \(i1, _, _) (i2, _, _) -> compare i1 i2
-        merging zs @ ((_, t, _) : _) = merging' zs t 1 []
+        merging zs@((_, t, _) : _) = merging' zs t 1 []
         merging' [] t k acc
           | k <= count = merging' [] t (k + 1) (0 : acc)
           | k > count  = (t, reverse acc)
-        merging' zs @ ((i, _, n) : xs) t k acc
+        merging' zs@((i, _, n) : xs) t k acc
           | i == k = merging' xs t (k + 1) (n : acc)
           | i > k  = merging' zs t (k + 1) (0 : acc)
         count = length xs
diff --git a/aivika-experiment.cabal b/aivika-experiment.cabal
--- a/aivika-experiment.cabal
+++ b/aivika-experiment.cabal
@@ -1,5 +1,5 @@
 name:            aivika-experiment
-version:         5.3
+version:         5.3.3
 synopsis:        Simulation experiments for the Aivika library
 description:
     This package allows defining simulation experiments based on the aivika [1]
@@ -21,7 +21,7 @@
 author:          David Sorokin
 maintainer:      David Sorokin <david.sorokin@gmail.com>
 homepage:        http://www.aivikasoft.com
-cabal-version:   >= 1.6
+cabal-version:   >= 1.10
 build-type:      Simple
 tested-with:     GHC == 7.10.1
 
@@ -62,14 +62,16 @@
                      split >= 0.2.2,
                      network-uri >= 2.6,
                      parallel-io >= 0.3.2.1,
-                     aivika >= 5.5,
-                     aivika-transformers >= 5.5
+                     aivika >= 5.9.1,
+                     aivika-transformers >= 5.9.1
 
-    extensions:      MultiParamTypeClasses,
-                     FlexibleContexts,
-                     TypeFamilies
+    other-extensions:   MultiParamTypeClasses,
+                        FlexibleContexts,
+                        TypeFamilies
                      
     ghc-options:     -O2
+
+    default-language:   Haskell2010
 
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