diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 79884be..e5903e0 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -4,7 +4,3 @@ updates:
   directory: "/"
   schedule:
     interval: weekly
-- package-ecosystem: docker
-  directory: "/"
-  schedule:
-    interval: weekly
\ No newline at end of file
diff --git a/Dockerfile b/Dockerfile
index fbab39e..ef9ca66 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 #syntax=docker/dockerfile:1.2
 
 # hadolint ignore=DL3029
-FROM --platform=$BUILDPLATFORM debian:bullseye-20211201 AS buildroot-base
+FROM --platform=$BUILDPLATFORM debian:bullseye-20211220-slim AS buildroot-base
 
 # hadolint ignore=DL3008
 RUN apt-get update && \
diff --git a/README.md b/README.md
index 7b8aadc..2c3b228 100644
--- a/README.md
+++ b/README.md
@@ -115,10 +115,10 @@ export DOCKER_BUILDKIT=1
 export DOCKER_CLI_EXPERIMENTAL=enabled
 
 # build local image for native platform
-docker build . --pull --tag klutchell/unbound --load
+docker build . --tag klutchell/unbound
 
 # cross-build for another platform
-docker build . --pull --tag klutchell/unbound --load --platform linux/arm/v6
+docker build . --tag klutchell/unbound --platform linux/arm/v6
 ```
 
 ## Test