diff --git a/README.md b/README.md
index eab406d..30a5387 100644
--- a/README.md
+++ b/README.md
@@ -207,7 +207,7 @@ install-php-extensions @fix_letsencrypt
 | csv |  |  |  |  |  | ✓ | ✓ | ✓ | ✓ | ✓ |
 | dba | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
 | ddtrace[*](#special-requirements-for-ddtrace) |  | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
-| decimal |  |  | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
+| decimal[*](#special-requirements-for-decimal) |  |  | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
 | ds |  |  | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
 | enchant | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
 | ev | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
@@ -245,7 +245,7 @@ install-php-extensions @fix_letsencrypt
 | maxminddb |  |  |  |  | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
 | mcrypt | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
 | memcache | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
-| memcached | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
+| memcached[*](#special-requirements-for-memcached) | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
 | memprof[*](#special-requirements-for-memprof) | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
 | mongo | ✓ | ✓ |  |  |  |  |  |  |  |  |
 | mongodb | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
@@ -415,10 +415,12 @@ Some extensions have special requirements:
 <!-- ########################################################### -->
 | Extension | 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 |
+| <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-decimal"></a>decimal | Not available in `bookworm` 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 |
 | <a name="special-requirements-for-memprof"></a>memprof | &bull; Not available in `alpine3.9` docker images<br />&bull; Not available in `alpine3.10` docker images<br />&bull; Not available in `alpine3.11` docker images<br />&bull; Not available in `alpine3.12` docker images<br />&bull; Not available in `alpine3.13` docker images<br />&bull; Not available in `alpine3.14` docker images<br />&bull; Not available in `alpine3.15` docker images |
 | <a name="special-requirements-for-parallel"></a>parallel | Requires images with PHP compiled with thread-safety enabled (`zts`) |
 | <a name="special-requirements-for-parle"></a>parle | Not available in `jessie` docker images |