diff --git a/HLearn-distributions.cabal b/HLearn-distributions.cabal
--- a/HLearn-distributions.cabal
+++ b/HLearn-distributions.cabal
@@ -1,5 +1,5 @@
 Name:                HLearn-distributions
-Version:             1.1.0.1
+Version:             1.1.0.2
 Synopsis:            Distributions for use with the HLearn library
 Description:         This module is used to estimate statistical distributions from data.  It is based on the algebraic properties of the "HomTrainer" type class from the HLearn-algebra package.
 Category:            Data Mining, Machine Learning, Statistics
diff --git a/src/HLearn/Models/Distributions/Univariate/Internal/Moments.hs b/src/HLearn/Models/Distributions/Univariate/Internal/Moments.hs
--- a/src/HLearn/Models/Distributions/Univariate/Internal/Moments.hs
+++ b/src/HLearn/Models/Distributions/Univariate/Internal/Moments.hs
@@ -12,6 +12,9 @@
 import qualified Data.Vector.Unboxed as U
 import Data.Vector.Unboxed.Deriving
 
+import Data.Vector.Generic (Vector(..))
+import Data.Vector.Generic.Mutable (MVector(..))
+
 import HLearn.Algebra
 import HLearn.Models.Distributions.Common
 import HLearn.Models.Distributions.Visualization.Gnuplot