diff --git a/LICENSE b/LICENSE
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2010-2012, Amy de Buitléir
+Copyright (c) Amy de Buitléir 2010-2015
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without 
diff --git a/som.cabal b/som.cabal
--- a/som.cabal
+++ b/som.cabal
@@ -1,5 +1,5 @@
 Name:              som
-Version:           8.0.3
+Version:           8.0.4
 Stability:         experimental
 Synopsis:          Self-Organising Maps.
 Description:       A Kohonen Self-organising Map (SOM) maps input patterns 
@@ -33,7 +33,7 @@
 source-repository this
   type:     git
   location: https://github.com/mhwombat/som.git
-  tag:      8.0.3
+  tag:      8.0.4
 
 
 library
diff --git a/test/Data/Datamining/Clustering/SOMQC.hs b/test/Data/Datamining/Clustering/SOMQC.hs
--- a/test/Data/Datamining/Clustering/SOMQC.hs
+++ b/test/Data/Datamining/Clustering/SOMQC.hs
@@ -65,8 +65,8 @@
   = property $
     decayingGaussian r0 rf w0 wf tf 0 inside >= r0 * exp (-0.5)
       && decayingGaussian r0 rf w0 wf tf 0 outside < r0 * exp (-0.5)
-  where inside = w0 - 0.001
-        outside = w0 + 0.001
+  where inside = w0 * 0.99999
+        outside = w0 * 1.00001
 
 prop_DecayingGaussian_decays_to_rf
   :: DecayingGaussianParams Double -> Property
@@ -79,8 +79,8 @@
   = property $
     decayingGaussian r0 rf w0 wf tf tf inside >= rf * exp (-0.5)
       && decayingGaussian r0 rf w0 wf tf tf outside < rf * exp (-0.5)
-  where inside = wf - 0.001
-        outside = wf + 0.001
+  where inside = wf * 0.99999
+        outside = wf * 1.00001
 
 fractionDiff :: [Double] -> [Double] -> Double
 fractionDiff xs ys = if denom == 0 then 0 else d / denom