diff --git a/defaults/main.yml b/defaults/main.yml
new file mode 100644
index 0000000000000000000000000000000000000000..6935dd9c8c3a7b7fd651da03a3938ecf4b8afaa4
--- /dev/null
+++ b/defaults/main.yml
@@ -0,0 +1,2 @@
+alerta_version_api: 8.1.0
+alerta_version_web_ui: 8.0.1
diff --git a/templates/api/Dockerfile b/templates/api/Dockerfile
index b3f9ae7d541e0b807e091520a8dac277cf5b96e1..3b7bf50cc0040a0318c60e953620c9fe7eac96ce 100644
--- a/templates/api/Dockerfile
+++ b/templates/api/Dockerfile
@@ -1,4 +1,4 @@
-FROM alerta/alerta-web
+FROM alerta/alerta-web:{{ alerta_version_api }}
 
 USER root
 COPY ./plugins/*.py /tmp/plugins/
diff --git a/templates/webui/Dockerfile b/templates/webui/Dockerfile
index 3172ca47f38f9bff1e79d756878846952881d677..3f32f63827ab223e69a2f5d8d7a89cc2db2d7ac8 100644
--- a/templates/webui/Dockerfile
+++ b/templates/webui/Dockerfile
@@ -3,7 +3,7 @@ FROM node:lts-alpine as build-stage
 
 RUN apk add --no-cache git
 WORKDIR /app
-ADD https://github.com/alerta/alerta-webui/archive/master.tar.gz /tmp/webui.tar.gz
+ADD https://github.com/alerta/alerta-webui/archive/v{{ alerta_version_web_ui }}.tar.gz /tmp/webui.tar.gz
 RUN tar zxvf /tmp/webui.tar.gz -C /app --strip-components=1
 RUN npm install
 COPY .env .