diff --git a/php-worker/Dockerfile b/php-worker/Dockerfile
index 2524dea..9568177 100644
--- a/php-worker/Dockerfile
+++ b/php-worker/Dockerfile
@@ -32,6 +32,8 @@ RUN apk --update add wget \
   cyrus-sasl-dev \
   libgsasl-dev \
   oniguruma-dev \
+  openssl \
+  openssl-dev \
   supervisor
 
 RUN docker-php-ext-install mysqli mbstring pdo pdo_mysql tokenizer xml pcntl