diff --git a/Dockerfile b/Dockerfile
index 6785202..101f102 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,7 @@
 # Which versions?
 ARG PHP_VERSION=8.3.15
 ARG REDIS_EXT_VERSION=6.1.0
+ARG MEMCACHED_EXT_VERSION=3.3.0
 ARG IMAGICK_EXT_VERSION=3.7.0
 ARG PCOV_EXT_VERSION=1.0.12
 ARG HTTPD_VERSION=2.4.62
@@ -12,6 +13,7 @@ ARG COMPOSER_VERSION=2.8.4
 FROM --platform=linux/amd64 heroku/heroku:24-build AS stage-amd64
 ARG PHP_VERSION
 ARG REDIS_EXT_VERSION
+ARG MEMCACHED_EXT_VERSION
 ARG IMAGICK_EXT_VERSION
 ARG PCOV_EXT_VERSION
 ARG HTTPD_VERSION
@@ -33,6 +35,7 @@ RUN curl --silent --location https://lang-php.s3.us-east-1.amazonaws.com/dist-he
 # Install PHP
 RUN curl --silent --location https://lang-php.s3.us-east-1.amazonaws.com/dist-heroku-24-amd64-stable/php-$PHP_VERSION.tar.gz | tar xz -C /app/.heroku/php
 RUN curl --silent --location https://lang-php.s3.us-east-1.amazonaws.com/dist-heroku-24-amd64-stable/extensions/no-debug-non-zts-20230831/redis-$REDIS_EXT_VERSION.tar.gz | tar xz -C /app/.heroku/php
+RUN curl --silent --location https://lang-php.s3.us-east-1.amazonaws.com/dist-heroku-24-amd64-stable/extensions/no-debug-non-zts-20230831/memcached-$MEMCACHED_EXT_VERSION.tar.gz | tar xz -C /app/.heroku/php
 RUN curl --silent --location https://lang-php.s3.us-east-1.amazonaws.com/dist-heroku-24-amd64-stable/extensions/no-debug-non-zts-20230831/imagick-$IMAGICK_EXT_VERSION.tar.gz | tar xz -C /app/.heroku/php
 RUN curl --silent --location https://lang-php.s3.us-east-1.amazonaws.com/dist-heroku-24-amd64-stable/extensions/no-debug-non-zts-20230831/pcov-$PCOV_EXT_VERSION.tar.gz | tar xz -C /app/.heroku/php
 
@@ -46,6 +49,7 @@ RUN curl --silent --location https://nodejs.org/dist/v$NODE_VERSION/node-v$NODE_
 FROM --platform=linux/arm64 heroku/heroku:24-build AS stage-arm64
 ARG PHP_VERSION
 ARG REDIS_EXT_VERSION
+ARG MEMCACHED_EXT_VERSION
 ARG IMAGICK_EXT_VERSION
 ARG PCOV_EXT_VERSION
 ARG HTTPD_VERSION
@@ -67,6 +71,7 @@ RUN curl --silent --location https://lang-php.s3.us-east-1.amazonaws.com/dist-he
 # Install PHP
 RUN curl --silent --location https://lang-php.s3.us-east-1.amazonaws.com/dist-heroku-24-arm64-stable/php-$PHP_VERSION.tar.gz | tar xz -C /app/.heroku/php
 RUN curl --silent --location https://lang-php.s3.us-east-1.amazonaws.com/dist-heroku-24-arm64-stable/extensions/no-debug-non-zts-20230831/redis-$REDIS_EXT_VERSION.tar.gz | tar xz -C /app/.heroku/php
+RUN curl --silent --location https://lang-php.s3.us-east-1.amazonaws.com/dist-heroku-24-arm64-stable/extensions/no-debug-non-zts-20230831/memcached-$MEMCACHED_EXT_VERSION.tar.gz | tar xz -C /app/.heroku/php
 RUN curl --silent --location https://lang-php.s3.us-east-1.amazonaws.com/dist-heroku-24-arm64-stable/extensions/no-debug-non-zts-20230831/imagick-$IMAGICK_EXT_VERSION.tar.gz | tar xz -C /app/.heroku/php
 RUN curl --silent --location https://lang-php.s3.us-east-1.amazonaws.com/dist-heroku-24-arm64-stable/extensions/no-debug-non-zts-20230831/pcov-$PCOV_EXT_VERSION.tar.gz | tar xz -C /app/.heroku/php
 
@@ -119,6 +124,7 @@ RUN echo "\n\
     extension=pcntl.so \n\
     extension=pcov.so \n\
     extension=redis.so \n\
+    extension=memcached.so \n\
     extension=imagick.so \n\
     extension=shmop.so \n\
     extension=soap.so \n\
diff --git a/README.md b/README.md
index ee28cce..23d416e 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ Usage: `FROM ghcr.io/robuust/heroku-php`
 * Heroku 24
 * Apache
 * Nginx
-* PHP 8.3.x with Redis, Imagick and PCov
+* PHP 8.3.x with Redis, Memcached, Imagick and PCov
 * Composer 2
 * Node 22.x
 * Yarn 4.x