diff --git a/Dockerfile.arm b/Dockerfile.arm
index fb03b6d..d90826a 100644
--- a/Dockerfile.arm
+++ b/Dockerfile.arm
@@ -16,6 +16,8 @@ ARG PRETTIER_VERSION
 ENV GOMPLATE_VERSION="${GOMPLATE_VERSION:-v3.9.0}"
 # renovate: datasource=github-releases depName=thegeeklab/url-parser
 ENV URL_PARSER_VERSION="${URL_PARSER_VERSION:-v0.2.3}"
+# renovate: datasource=npm depName=prettier
+ENV PRETTIER_VERSION="${BUILD_VERSION:-2.2.0}"
 
 RUN apk --update add curl make tar git && \
     curl -SsL -o /usr/local/bin/gomplate "https://github.com/hairyhenderson/gomplate/releases/download/${GOMPLATE_VERSION}/gomplate_linux-armv7-slim" && \