diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -38,3 +38,7 @@
 
 * Seventh version. Completed changes from Double to Float started in the 0.6.0.0 version. Moved DobutokO.Sound.Faded.double42Float4 function to Data.Vector.DoubleZipped 
 module.
+
+## 0.8.0.0 -- 2020-08-16
+
+* Eighth version. Changed the dependency boundaries.
diff --git a/dobutokO4.cabal b/dobutokO4.cabal
--- a/dobutokO4.cabal
+++ b/dobutokO4.cabal
@@ -2,7 +2,7 @@
 -- documentation, see http://haskell.org/cabal/users-guide/
 
 name:                dobutokO4
-version:             0.7.0.0
+version:             0.8.0.0
 synopsis:            Helps to create experimental music. Uses SoX inside.
 description:         Uses SoX fade (in a special 2D way) and frequency modulation. Provides a special representation for the composition.
 homepage:            https://hackage.haskell.org/package/dobutokO4
@@ -20,6 +20,6 @@
   exposed-modules:     DobutokO.Sound.Faded, DobutokO.Sound.Presentation
   -- other-modules:
   other-extensions:    CPP
-  build-depends:       base >=4.7 && <4.15, vector >=0.11 && <0.14, process >=1.4 && <1.9, mmsyn3 >=0.1.5 && <1, directory >=1.2.7 && <1.7, mmsyn7l >=0.7 && <1, dobutokO2 >=0.42 && <1, vector-doublezip >= 0.2 && <1
+  build-depends:       base >=4.7 && <4.15, vector >=0.11 && <0.14, process >=1.4 && <1.9, mmsyn3 >=0.1.5 && <1, directory >=1.2.7 && <1.7, mmsyn7l >=0.8 && <1, dobutokO2 >=0.43 && <1, vector-doublezip >= 0.2 && <1
   -- hs-source-dirs:
   default-language:    Haskell2010