diff --git a/README.md b/README.md
index bdfd8ad..dcd0b1b 100644
--- a/README.md
+++ b/README.md
@@ -183,6 +183,7 @@ install-php-extensions @fix_letsencrypt
 | mcrypt | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
 | memcache | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
 | memcached | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
+| memprof[*](#special-requirements-for-memprof) | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
 | mongo | ✓ | ✓ |  |  |  |  |  |  |  |
 | mongodb | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
 | mosquitto | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |  |  |
@@ -255,7 +256,7 @@ install-php-extensions @fix_letsencrypt
 | zookeeper | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
 | zstd | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
 
-*Number of supported extensions: 116*
+*Number of supported extensions: 117*
 <!-- END OF EXTENSIONS TABLE -->
 
 PS: the pre-installed PHP extensions are excluded from this list.
@@ -335,6 +336,7 @@ Some extensions have special requirements:
 <!-- ########################################################### -->
 | Extension | Requirements |
 |---|---|
+| <a name="special-requirements-for-memprof"></a>memprof | Not available in `alpine` 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-pdo_sqlsrv"></a>pdo_sqlsrv | &bull; Not available in `alpine3.7` docker images<br />&bull; Not available in `alpine3.8` docker images |
 | <a name="special-requirements-for-pthreads"></a>pthreads | Requires images with PHP compiled with thread-safety enabled (`zts`). |