diff --git a/data/Dockerfiles/php-fpm/Dockerfile b/data/Dockerfiles/php-fpm/Dockerfile
index cef46c4e..5c307ce7 100644
--- a/data/Dockerfiles/php-fpm/Dockerfile
+++ b/data/Dockerfiles/php-fpm/Dockerfile
@@ -3,13 +3,13 @@ LABEL maintainer "Andre Peters <andre.peters@servercow.de>"
 
 ARG DEBIAN_FRONTEND=noninteractive
 
-RUN apk add -U --no-cache libxml2-dev icu-dev redis mysql-client bash autoconf g++ make
+RUN apk add -U --no-cache libxml2-dev icu-dev icu-libs redis mysql-client bash autoconf g++ make
 RUN pecl install redis && pecl clear-cache
 RUN docker-php-ext-configure intl
 RUN docker-php-ext-install intl pdo pdo_mysql xmlrpc
 RUN docker-php-ext-enable redis
 RUN pear install channel://pear.php.net/Net_IDNA2-0.1.1 Auth_SASL Net_IMAP NET_SMTP Net_IDNA2 Mail_mime
-RUN apk del autoconf g++ make libxml2-dev
+RUN apk del autoconf g++ make libxml2-dev icu-dev
 
 COPY ./docker-entrypoint.sh /