diff --git a/Dockerfile b/Dockerfile
index a4670ff..2020534 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -14,7 +14,7 @@ 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 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
 
 # symlink nginx logs to stdout/stderr for supervisord
 RUN ln -sf /dev/stdout /var/log/nginx/access.log \
diff --git a/pathfinder b/pathfinder
index 58d9bb1..b73f372 160000
--- a/pathfinder
+++ b/pathfinder
@@ -1 +1 @@
-Subproject commit 58d9bb1ac2b11c6b6b0a44f613bf58a5a0ce6486
+Subproject commit b73f3726ee5e3a2581b75fd83e851d20ea61bec5