diff --git a/php-worker/Dockerfile b/php-worker/Dockerfile
index 7a448ba0d9..9afe9c0172 100644
--- a/php-worker/Dockerfile
+++ b/php-worker/Dockerfile
@@ -348,11 +348,11 @@ ARG INSTALL_PHALCON=false
 ARG LARADOCK_PHALCON_VERSION
 ENV LARADOCK_PHALCON_VERSION ${LARADOCK_PHALCON_VERSION}
 
-RUN if [ $INSTALL_PHALCON = true ]; then \
-      apt-get update -yqq \
+RUN if [ "$INSTALL_PHALCON" = true ]; then \
+      apk update \
       && pecl channel-update pecl.php.net \
-      && apt-get install -yqq libpcre3-dev; \
-      pecl install phalcon-${LARADOCK_PHALCON_VERSION}; \
+      && apk add --no-cache libpcre32 \
+      && pecl install phalcon-${LARADOCK_PHALCON_VERSION}; \
       docker-php-ext-enable phalcon; \
       php -m | grep -q 'phalcon' \
     ;fi