diff --git a/pathfinder.Dockerfile b/pathfinder.Dockerfile
index 51c3281..da21105 100644
--- a/pathfinder.Dockerfile
+++ b/pathfinder.Dockerfile
@@ -16,7 +16,12 @@ 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
+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 ca-certificates
+
+# fix expired DST Cert
+RUN sed -i '/^mozilla\/DST_Root_CA_X3.crt$/ s/^/!/' /etc/ca-certificates.conf \
+    && update-ca-certificates 
 
 # symlink nginx logs to stdout/stderr for supervisord
 RUN ln -sf /dev/stdout /var/log/nginx/access.log \