diff --git a/.woodpecker.yml b/.woodpecker.yml
index 7165763..f06cc29 100644
--- a/.woodpecker.yml
+++ b/.woodpecker.yml
@@ -20,4 +20,6 @@ matrix:
   MAX_MEMORY:
   - "100mb"
   ALPINE_VERSION:
-  - 3.15.0
+  - 3.15.4
+  REDIS_VERSION:
+  - 6.2.7
diff --git a/Dockerfile b/Dockerfile
index ee8a26f..954eefc 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,10 +3,10 @@ ARG ALPINE_VERSION=3.13.6
 ARG BASE_IMAGE=sutty/monit
 FROM ${BASE_IMAGE}:${ALPINE_VERSION} AS build
 MAINTAINER "f <f@sutty.nl>"
+ARG REDIS_VERSION=6.2.7
+ARG MAX_MEMORY=100mb
 
-ARG MAX_MEMORY
-
-RUN apk add --no-cache redis su-exec
+RUN apk add --no-cache redis~${REDIS_VERSION}
 
 RUN sed -re "/^bind /d" -i /etc/redis.conf
 RUN sed -re "/^protected-mode /d" -i /etc/redis.conf
@@ -23,8 +23,9 @@ ARG ALPINE_VERSION=3.13.6
 ARG BASE_IMAGE=sutty/monit
 FROM ${BASE_IMAGE}:${ALPINE_VERSION}
 MAINTAINER "f <f@sutty.nl>"
+ARG REDIS_VERSION=6.2.7
 
-RUN apk add --no-cache redis
+RUN apk add --no-cache redis~${REDIS_VERSION} su-exec
 
 COPY --from=build /etc/redis.conf /etc/redis.conf
 COPY ./monit.conf /etc/monit.d/redis.conf