diff --git a/README.md b/README.md
index d43a86b..6d6bcd5 100644
--- a/README.md
+++ b/README.md
@@ -209,6 +209,7 @@ install-php-extensions @fix_letsencrypt
 | ddtrace[*](#special-requirements-for-ddtrace) |  | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
 | decimal |  |  | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
 | ds |  |  | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
+| ecma_intl[*](#special-requirements-for-ecma_intl) |  |  |  |  |  |  |  |  |  | ✓ |
 | enchant | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
 | ev | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
 | event | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
@@ -334,7 +335,7 @@ install-php-extensions @fix_letsencrypt
 | zookeeper | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
 | zstd | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
 
-*Number of supported extensions: 140*
+*Number of supported extensions: 141*
 <!-- END OF EXTENSIONS TABLE -->
 
 PS: the pre-installed PHP extensions are excluded from this list.
@@ -421,6 +422,7 @@ Some extensions have special requirements:
 |---|---|
 | <a name="special-requirements-for-cassandra"></a>cassandra | &bull; Not available in `jessie` docker images<br />&bull; Not available in `stretch` docker images<br />&bull; Not available in `buster` docker images<br />&bull; Not available in `bullseye` docker images<br />&bull; Not available in `bookworm` docker images |
 | <a name="special-requirements-for-ddtrace"></a>ddtrace | Not available in `jessie` docker images |
+| <a name="special-requirements-for-ecma_intl"></a>ecma_intl | &bull; Not available in `buster` docker images<br />&bull; Not available in `bullseye` docker images |
 | <a name="special-requirements-for-geos"></a>geos | &bull; Not available in `alpine3.9` docker images<br />&bull; Not available in `alpine3.10` docker images |
 | <a name="special-requirements-for-lz4"></a>lz4 | Not available in `jessie` docker images |
 | <a name="special-requirements-for-memcached"></a>memcached | Not available in `bookworm` docker images |