diff --git a/CHANGELOG.md b/CHANGELOG.md
index ceffd08..9d85301 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,14 @@ All notable changes to the Apify Go client are documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.8.3] - 2026-08-28
+
+### Changed
+
+- Bumped `APISpecVersion` to `v2-2026-08-27T071624Z` and `ClientVersion` to `0.8.3`.
+- Updated `README.md`'s documented `APISpecVersion` example, which was stale by one spec
+  version.
+
 ## [0.8.2] - 2026-08-15
 
 ### Changed
diff --git a/README.md b/README.md
index e5ea80f..829eb43 100644
--- a/README.md
+++ b/README.md
@@ -202,7 +202,7 @@ func main() {
 
 - `apify.ClientVersion` — the semantic version of this library.
 - `apify.APISpecVersion` — the Apify OpenAPI spec version this client was built against
-  (`v2-2026-08-14T072928Z`).
+  (`v2-2026-08-27T071624Z`).
 
 ### Releasing
 
diff --git a/version.go b/version.go
index ff9c5f6..8019877 100644
--- a/version.go
+++ b/version.go
@@ -4,10 +4,10 @@ package apify
 //
 // It follows Semantic Versioning (https://semver.org/). Changes to the public
 // interface (other than additive ones) are considered breaking changes.
-const ClientVersion = "0.8.2"
+const ClientVersion = "0.8.3"
 
 // APISpecVersion is the version of the Apify OpenAPI specification that this
 // client was generated and verified against.
 //
 // It corresponds to the `info.version` field of the Apify OpenAPI document.
-const APISpecVersion = "v2-2026-08-14T072928Z"
+const APISpecVersion = "v2-2026-08-27T071624Z"