diff --git a/README.md b/README.md
index 4c88ce4..c5bed4a 100644
--- a/README.md
+++ b/README.md
@@ -139,7 +139,7 @@ by adding `expression` to your list of dependencies in `mix.exs`:
 ```elixir
 def deps do
   [
-    {:expression, "~> 3.0.0-rc.3"}
+    {:expression, "~> 3.0.0-rc.4"}
   ]
 end
 ```