diff --git a/src/java.base/share/classes/jdk/internal/util/regex/Grapheme.java b/src/java.base/share/classes/jdk/internal/util/regex/Grapheme.java
index b5d5c3927ddf6..34a69c3045ffe 100644
--- a/src/java.base/share/classes/jdk/internal/util/regex/Grapheme.java
+++ b/src/java.base/share/classes/jdk/internal/util/regex/Grapheme.java
@@ -35,7 +35,7 @@ public final class Grapheme {
      * <p>
      * See Unicode Standard Annex #29 Unicode Text Segmentation for the specification
      * for the extended grapheme cluster boundary rules. The following implementation
-     * is based on the annex for Unicode version 15.1.
+     * is based on the annex for Unicode version 16.0.
      *
      * @spec http://www.unicode.org/reports/tr29/tr29-45.html
      * @param src the {@code CharSequence} to be scanned