diff --git a/Dockerfile b/Dockerfile
index 8830b00..d2cc32d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -41,6 +41,7 @@ RUN apk add --no-cache \
     php7-ctype \
     php7-xmlwriter \
     php7-tokenizer \
+    php7-curl \
     composer
 
 WORKDIR /var/lib/roundcube