diff --git a/CHANGELOG.md b/CHANGELOG.md
index 954e169..2d2370f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## [5.0.0](https://github.com/inaka/worker_pool/tree/5.0.0) (2021-10-07)
+
+[Full Changelog](https://github.com/inaka/worker_pool/compare/4.0.3...5.0.0)
+
+**Merged pull requests:**
+
+- Modernize [\#177](https://github.com/inaka/worker_pool/pull/177) ([elbrujohalcon](https://github.com/elbrujohalcon))
+
 ## [4.0.3](https://github.com/inaka/worker_pool/tree/4.0.3) (2020-11-17)
 
 [Full Changelog](https://github.com/inaka/worker_pool/compare/4.0.2...4.0.3)
diff --git a/src/worker_pool.app.src b/src/worker_pool.app.src
index c24d631..e38bd88 100644
--- a/src/worker_pool.app.src
+++ b/src/worker_pool.app.src
@@ -17,7 +17,7 @@
 {application,
  worker_pool,
  [{description, "Erlang Worker Pool"},
-  {vsn, "4.0.3"},
+  {vsn, "5.0.0"},
   {id, "worker_pool"},
   {registered, []},
   {modules, []},