diff --git a/CHANGELOG.md b/CHANGELOG.md
index 510c9bf630f..fb763015607 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 
+- Fix `ExponentialHistogramAggregation`
+  ([#3977](https://github.com/open-telemetry/opentelemetry-python/pull/3977))
 - Log a warning when a `LogRecord` in `sdk/log` has dropped attributes
   due to reaching limits
   ([#3946](https://github.com/open-telemetry/opentelemetry-python/pull/3946))