diff --git a/CHANGELOG.md b/CHANGELOG.md
index df529bb..4aebb27 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,8 @@ Additional changes to original format:
 - `Thank you for your contribution` for shout-outs to the community
 
 ## [Unreleased]
+
+## [0.9.0] - 2021-05-11
 ### Fixed
 - `MetricsConfig` would cause a stack overflow on construction
 
@@ -167,7 +169,8 @@ _(not released to crates.io)_
 ## [0.1.0] - 2020-08-01
 **Initial release**
 
-[Unreleased]: https://github.com/asaaki/opentelemetry-tide/compare/v0.8.0...HEAD
+[Unreleased]: https://github.com/asaaki/opentelemetry-tide/compare/v0.9.0...HEAD
+[0.8.0]: https://github.com/asaaki/opentelemetry-tide/compare/v0.8.0...v0.9.0
 [0.8.0]: https://github.com/asaaki/opentelemetry-tide/compare/v0.7.0...v0.8.0
 [0.7.0]: https://github.com/asaaki/opentelemetry-tide/compare/v0.6.2...v0.7.0
 [0.6.1]: https://github.com/asaaki/opentelemetry-tide/compare/v0.6.1...v0.6.2
diff --git a/Cargo.toml b/Cargo.toml
index 1e9fe78..d11b7a4 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "opentelemetry-tide"
-version = "0.8.0"
+version = "0.9.0"
 authors = [
   "Christoph Grabo <asaaki@mannaz.cc>",
   "The opentelemetry-tide Contributors"
diff --git a/README.md b/README.md
index 7af6f42..6bbda99 100644
--- a/README.md
+++ b/README.md
@@ -37,8 +37,8 @@ Be part of the new observability movement!
 
 * It only implements very basic request tracing on the middleware layer.
   If you need spans for your executed code, you need to add them yourself.
-* The majority of the implementation is based on <https://github.com/OutThereLabs/actix-web-opentelemetry>.
 * It provides basic prometheus metrics, based on the [RED method].
+* This project got inspired by <https://github.com/OutThereLabs/actix-web-opentelemetry>.
 * You probably do not want to use it in production. 🤷
 
 ## How to use
@@ -73,7 +73,7 @@ curl http://localhost:3000/metrics
 async-std = { version = "1.9", features = ["attributes"] }
 opentelemetry = { version = "0.14", features = ["async-std", "rt-async-std"] }
 opentelemetry-jaeger = { version = "0.13", features = ["async-std"] }
-opentelemetry-tide = "0.8"
+opentelemetry-tide = "0.9"
 tide = "0.16"
 ```
 
diff --git a/src/lib.rs b/src/lib.rs
index b2704e9..0200bad 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -42,7 +42,7 @@ curl http://localhost:3000/metrics
 async-std = { version = "1.9", features = ["attributes"] }
 opentelemetry = { version = "0.14", features = ["async-std", "rt-async-std"] }
 opentelemetry-jaeger = { version = "0.13", features = ["async-std"] }
-opentelemetry-tide = "0.8"
+opentelemetry-tide = "0.9"
 tide = "0.16"
 ```
 
diff --git a/src/middlewares/metrics.rs b/src/middlewares/metrics.rs
index ea3fc9b..9b2d63f 100644
--- a/src/middlewares/metrics.rs
+++ b/src/middlewares/metrics.rs
@@ -62,7 +62,7 @@ impl MetricsConfig {
             global_labels,
             boundaries,
             quantiles,
-            route
+            route,
         }
     }
 }