diff --git a/alerting/src/main/kotlin/org/opensearch/alerting/aggregation/bucketselectorext/BucketSelectorExtAggregator.kt b/alerting/src/main/kotlin/org/opensearch/alerting/aggregation/bucketselectorext/BucketSelectorExtAggregator.kt
index f121138b7..a9d555778 100644
--- a/alerting/src/main/kotlin/org/opensearch/alerting/aggregation/bucketselectorext/BucketSelectorExtAggregator.kt
+++ b/alerting/src/main/kotlin/org/opensearch/alerting/aggregation/bucketselectorext/BucketSelectorExtAggregator.kt
@@ -143,7 +143,7 @@ class BucketSelectorExtAggregator : SiblingPipelineAggregator {
     private fun isAccepted(obj: Any, filter: IncludeExclude?): Boolean {
         return when (obj.javaClass) {
             String::class.java -> {
-                val stringFilter = filter!!.convertToStringFilter(DocValueFormat.RAW)
+                val stringFilter = filter!!.convertToStringFilter(DocValueFormat.RAW, null)
                 stringFilter.accept(BytesRef(obj as String))
             }
             java.lang.Long::class.java, Long::class.java -> {
diff --git a/release-notes/opensearch-alerting.release-notes-1.3.20.0.md b/release-notes/opensearch-alerting.release-notes-1.3.20.0.md
new file mode 100644
index 000000000..fa2fdbf8f
--- /dev/null
+++ b/release-notes/opensearch-alerting.release-notes-1.3.20.0.md
@@ -0,0 +1,12 @@
+## Version 1.3.20.0
+Compatible with OpenSearch 1.3.20
+
+### Maintenance
+* Increment version to 1.3.20. ([#1640](https://github.com/opensearch-project/alerting/pull/1640))
+* Remove dco and update artifact action to v4 ([#1735](https://github.com/opensearch-project/alerting/pull/1735))
+
+### Bug Fixes
+* Fix compilation error bug due to osd-core ([#1736](https://github.com/opensearch-project/alerting/pull/1736))
+
+### Documentation
+* Added 1.3.20 release notes. ([#1742](https://github.com/opensearch-project/alerting/pull/1742))
\ No newline at end of file