diff --git a/CHANGELOG.md b/CHANGELOG.md
index 26dcac2..5d917ea 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,20 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [1.9.0] - 2023-10-12
+
+### Added
+
+- Added host tag to phoenix plugin to handle paths depended on a subdomain [#183](https://github.com/akoutmos/prom_ex/pull/183)
+
+### Changed
+
+- Removed deprecated `Logger.warn` calls [#207](https://github.com/akoutmos/prom_ex/pull/207)
+
+### Fixed
+
+- Addressed binary memory leak in flusher GenServer [#200](https://github.com/akoutmos/prom_ex/pull/200)
+
 ## [1.8.0] - 2023-04-01
 
 ### Added
diff --git a/README.md b/README.md
index f0f4c19..eacf97b 100644
--- a/README.md
+++ b/README.md
@@ -55,7 +55,7 @@ dependencies in `mix.exs`:
 ```elixir
 def deps do
   [
-    {:prom_ex, "~> 1.8.0"}
+    {:prom_ex, "~> 1.9.0"}
   ]
 end
 ```
diff --git a/mix.exs b/mix.exs
index e1432f2..6902cb6 100644
--- a/mix.exs
+++ b/mix.exs
@@ -4,7 +4,7 @@ defmodule PromEx.MixProject do
   def project do
     [
       app: :prom_ex,
-      version: "1.8.0",
+      version: "1.9.0",
       elixir: "~> 1.11",
       name: "PromEx",
       source_url: "https://github.com/akoutmos/prom_ex",