diff --git a/docker/blocks/prometheus/Dockerfile b/docker/blocks/prometheus/Dockerfile
index 1ad28f524ff..2098e6527d3 100644
--- a/docker/blocks/prometheus/Dockerfile
+++ b/docker/blocks/prometheus/Dockerfile
@@ -1,3 +1,3 @@
-FROM prom/prometheus
+FROM prom/prometheus:v1.8.2
 ADD prometheus.yml /etc/prometheus/
 ADD alert.rules /etc/prometheus/