diff --git a/CHANGELOG.markdown b/CHANGELOG.markdown
--- a/CHANGELOG.markdown
+++ b/CHANGELOG.markdown
@@ -1,3 +1,7 @@
+0.8
+---
+* Updated to `comonad` and `semigroupoids` 4.
+
 0.7.2
 -----
 * Dependency bump to allow `comonad` and `semigroupoids` 4.0
diff --git a/log-domain.cabal b/log-domain.cabal
--- a/log-domain.cabal
+++ b/log-domain.cabal
@@ -1,6 +1,6 @@
 name:          log-domain
 category:      Numeric
-version:       0.7.2
+version:       0.8
 license:       BSD3
 cabal-version: >= 1.8
 license-file:  LICENSE
@@ -11,7 +11,7 @@
 bug-reports:   http://github.com/analytics/log-domain/issues
 copyright:     Copyright (C) 2013 Edward A. Kmett
 build-type:    Custom
-tested-with:   GHC == 7.4.1, GHC == 7.6.1
+tested-with:   GHC == 7.4.1, GHC == 7.6.3
 synopsis:      Log-domain arithmetic
 description:   This package provides log-domain floats, doubles and complex numbers.
 
@@ -45,13 +45,13 @@
     binary                    >= 0.5      && < 0.8,
     bytes                     >= 0.7      && < 1,
     cereal                    >= 0.3.5    && < 0.4,
-    comonad                   >= 3        && < 5,
+    comonad                   >= 4        && < 5,
     deepseq                   >= 1.3      && < 1.5,
     distributive              >= 0.3      && < 1,
     generic-deriving          >= 1.4      && < 1.6,
     hashable                  >= 1.1.2.3  && < 1.3,
-    hashable-extras           >= 0.1      && < 1,
-    semigroupoids             >= 3.0.2    && < 5,
+    hashable-extras           >= 0.2      && < 1,
+    semigroupoids             >= 4        && < 5,
     semigroups                >= 0.8.4    && < 1,
     safecopy                  >= 0.8.1    && < 0.9,
     vector                    >= 0.9      && < 0.11