diff --git a/grafana/Dockerfile b/grafana/Dockerfile
index b790317..6d7d2fd 100644
--- a/grafana/Dockerfile
+++ b/grafana/Dockerfile
@@ -1,4 +1,4 @@
-FROM grafana/grafana
+FROM grafana/grafana:8.5.4
 
 ADD --chown=grafana:root https://raw.githubusercontent.com/domainaware/parsedmarc/master/grafana/Grafana-DMARC_Reports.json /var/lib/grafana/dashboards/
 RUN chmod 644 /etc/grafana/provisioning
diff --git a/parsedmarc/Dockerfile b/parsedmarc/Dockerfile
index cca9af5..d22eff7 100644
--- a/parsedmarc/Dockerfile
+++ b/parsedmarc/Dockerfile
@@ -1,6 +1,6 @@
 FROM python:alpine
 
-RUN apk add build-base libxml2-dev libxslt-dev \
+RUN apk add build-base libxml2-dev libxslt-dev libffi-dev \
     && pip install parsedmarc
 
 COPY parsedmarc.ini /