diff --git a/ChangeLog b/ChangeLog
index 6f997f3..70b79be 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Release 1.8.3 - 2025/02/18
+
+  * out_s3: Add `sts_http_proxy` and `sts_endpoint_url` to web_identity_credentials (GitHub: #452)
+
 Release 1.8.2 - 2024/12/18
 
   * out_s3: Add more logging to identify unexpected error of Tempfile#close.
diff --git a/VERSION b/VERSION
index 53adb84..a7ee35a 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.8.2
+1.8.3