diff --git a/pathfinder.Dockerfile b/pathfinder.Dockerfile
index e234f47..da21105 100644
--- a/pathfinder.Dockerfile
+++ b/pathfinder.Dockerfile
@@ -17,7 +17,7 @@ RUN composer install
 FROM trafex/alpine-nginx-php7:ba1dd422
 
 RUN apk update && apk add --no-cache busybox-suid sudo php7-redis php7-pdo php7-pdo_mysql \
-    php7-fileinfo php7-event shadow gettext bash apache2-utils logrotate
+    php7-fileinfo php7-event shadow gettext bash apache2-utils logrotate ca-certificates
 
 # fix expired DST Cert
 RUN sed -i '/^mozilla\/DST_Root_CA_X3.crt$/ s/^/!/' /etc/ca-certificates.conf \