diff --git a/CHANGELOG.md b/CHANGELOG.md
index f6166b1c..e8adb86f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@
 ### Add
 - Add `process_resident_memory_bytes`, `process_virtual_memory_bytes`, `go_memstats_sys_bytes`, `go_memstats_heap_idle_bytes`, `go_memstats_heap_inuse_bytes`, `go_goroutines`, `go_threads`, `buffer_default_size_bytes`, `buffer_max_size_bytes`, and `buffer_size_bytes` metrics to OpenTelemetry.
 - Add support for the `Last-Modified` response header and the `If-Modified-Since` request header (controlled by the `IMGPROXY_USE_LAST_MODIFIED` config).
+- Add `IMGPROXY_S3_ASSUME_ROLE_ARN` config.
 
 ### Change
 - Optimized memory buffers pooling for better performance and memory reusage.