diff --git a/.ci/bwcVersions b/.ci/bwcVersions
index 52b2f3b80f713..67b7dcc1950f3 100644
--- a/.ci/bwcVersions
+++ b/.ci/bwcVersions
@@ -104,3 +104,4 @@ BWC_VERSION:
   - "1.3.17"
   - "1.3.18"
   - "1.3.19"
+  - "1.3.20"
diff --git a/buildSrc/version.properties b/buildSrc/version.properties
index bd02287298fb4..bb57e2de27396 100644
--- a/buildSrc/version.properties
+++ b/buildSrc/version.properties
@@ -1,4 +1,4 @@
-opensearch        = 1.3.20
+opensearch        = 1.3.21
 lucene            = 8.10.1
 
 bundled_jdk_vendor = adoptium
diff --git a/server/src/main/java/org/opensearch/Version.java b/server/src/main/java/org/opensearch/Version.java
index 99e8f29d3bc27..fe6e724499144 100644
--- a/server/src/main/java/org/opensearch/Version.java
+++ b/server/src/main/java/org/opensearch/Version.java
@@ -101,7 +101,8 @@ public class Version implements Comparable<Version>, ToXContentFragment {
     public static final Version V_1_3_18 = new Version(1031899, org.apache.lucene.util.Version.LUCENE_8_10_1);
     public static final Version V_1_3_19 = new Version(1031999, org.apache.lucene.util.Version.LUCENE_8_10_1);
     public static final Version V_1_3_20 = new Version(1032099, org.apache.lucene.util.Version.LUCENE_8_10_1);
-    public static final Version CURRENT = V_1_3_20;
+    public static final Version V_1_3_21 = new Version(1032199, org.apache.lucene.util.Version.LUCENE_8_10_1);
+    public static final Version CURRENT = V_1_3_21;
 
     public static Version readVersion(StreamInput in) throws IOException {
         return fromId(in.readVInt());