diff --git a/lucene/core/src/java/org/apache/lucene/util/Version.java b/lucene/core/src/java/org/apache/lucene/util/Version.java
index 5aa7f844e38..46cf4c373be 100644
--- a/lucene/core/src/java/org/apache/lucene/util/Version.java
+++ b/lucene/core/src/java/org/apache/lucene/util/Version.java
@@ -31,9 +31,20 @@ import java.util.jar.Manifest;
  */
 public final class Version {
 
-  /** @deprecated (10.0.0) Use latest */
+  /**
+   * Match settings and bugs in Lucene's 9.0.0 release.
+   *
+   * @deprecated (9.1.0) Use latest
+   */
   @Deprecated public static final Version LUCENE_9_0_0 = new Version(9, 0, 0);
 
+  /**
+   * Match settings and bugs in Lucene's 9.1.0 release.
+   *
+   * @deprecated Use latest
+   */
+  @Deprecated public static final Version LUCENE_9_1_0 = new Version(9, 1, 0);
+
   /**
    * Match settings and bugs in Lucene's 10.0.0 release.
    *