diff --git a/CHANGELOG.md b/CHANGELOG.md
index e4fd5d7..9407c13 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## 1.8.x
+
+  * Add `:nilify` and `:ignore` for `:on_type_not_found` option
+
 ## 1.7.x
 
   * Support the SQLite3 Ecto adapter `ecto_sqlite3`
diff --git a/README.md b/README.md
index 8178829..a6a2d15 100644
--- a/README.md
+++ b/README.md
@@ -222,7 +222,7 @@ Add `polymorphic_embed` for Elixir as a dependency in your `mix.exs` file:
 ```elixir
 def deps do
   [
-    {:polymorphic_embed, "~> 1.7.2"}
+    {:polymorphic_embed, "~> 1.8.0"}
   ]
 end
 ```
diff --git a/mix.exs b/mix.exs
index 6bfceda..a1e137a 100644
--- a/mix.exs
+++ b/mix.exs
@@ -1,7 +1,7 @@
 defmodule PolymorphicEmbed.MixProject do
   use Mix.Project
 
-  @version "1.7.2"
+  @version "1.8.0"
 
   def project do
     [