diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8c69d58..3c289a8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## 0.8.0
+* make keccak module configurable (https://github.com/poanetwork/ex_abi/pull/169)
 ## 0.7.3
 * Fix type decoder to use lazy stream instead of pre-allocated list (https://github.com/poanetwork/ex_abi/pull/170)
 ## 0.7.2
diff --git a/README.md b/README.md
index 8adb254..207b7c2 100644
--- a/README.md
+++ b/README.md
@@ -5,12 +5,13 @@ The [Application Binary Interface](https://solidity.readthedocs.io/en/develop/ab
 ## Installation
 
 If [available in Hex](https://hex.pm/docs/publish), the package can be installed
-by adding `ex_abi` to your list of dependencies in `mix.exs`:
+by adding `ex_abi` and `ex_keccak` to your list of dependencies in `mix.exs`:
 
 ```elixir
 def deps do
   [
-    {:ex_abi, "~> 0.7.3"}
+    {:ex_abi, "~> 0.8.0"},
+    {:ex_keccak, "~> 0.7.5"}
   ]
 end
 ```
@@ -21,12 +22,14 @@ be found at [https://hexdocs.pm/ex_abi](https://hexdocs.pm/ex_abi).
 
 ## Confiiguration
 
-The default keccak library is set to `ex_keccak` but that can be ovveriden for a different libary:
+The default keccak library is set to `ex_keccak` but that can be overridden with a different module. The module should implement one function `hash_256/1`.
 
 ```elixir
-config :ex_abi, keccak_module: KeccakEx
+config :ex_abi, keccak_module: MyCustomKeccak
 ```
 
+If you're going to use a custom module, you should remove `ex_keccak` from deps in `mix.exs`.
+
 ## Usage
 
 ### Encoding
diff --git a/mix.exs b/mix.exs
index 3b8f4e7..35a47ee 100644
--- a/mix.exs
+++ b/mix.exs
@@ -4,7 +4,7 @@ defmodule ABI.Mixfile do
   def project do
     [
       app: :ex_abi,
-      version: "0.7.3",
+      version: "0.8.0",
       elixir: "~> 1.8",
       description: "Ethereum's ABI Interface",
       package: [