diff --git a/.ci/bwcVersions b/.ci/bwcVersions
index 17bb5a7df9b21..d1b4e4c509cb9 100644
--- a/.ci/bwcVersions
+++ b/.ci/bwcVersions
@@ -41,4 +41,5 @@ BWC_VERSION:
   - "2.17.1"
   - "2.17.2"
   - "2.18.0"
+  - "2.18.1"
   - "2.19.0"
\ No newline at end of file
diff --git a/libs/core/src/main/java/org/opensearch/Version.java b/libs/core/src/main/java/org/opensearch/Version.java
index 4d685e3bc654a..ec0a18dbbf882 100644
--- a/libs/core/src/main/java/org/opensearch/Version.java
+++ b/libs/core/src/main/java/org/opensearch/Version.java
@@ -112,6 +112,7 @@ public class Version implements Comparable<Version>, ToXContentFragment {
     public static final Version V_2_17_1 = new Version(2170199, org.apache.lucene.util.Version.LUCENE_9_11_1);
     public static final Version V_2_17_2 = new Version(2170299, org.apache.lucene.util.Version.LUCENE_9_11_1);
     public static final Version V_2_18_0 = new Version(2180099, org.apache.lucene.util.Version.LUCENE_9_12_0);
+    public static final Version V_2_18_1 = new Version(2180199, org.apache.lucene.util.Version.LUCENE_9_12_0);
     public static final Version V_3_0_0 = new Version(3000099, org.apache.lucene.util.Version.LUCENE_9_12_0);
     public static final Version V_2_19_0 = new Version(2190099, org.apache.lucene.util.Version.LUCENE_9_12_0);
     public static final Version CURRENT = V_3_0_0;