diff --git a/Dockerfile b/Dockerfile
index cc91938..aa0da2e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,7 +5,7 @@ FROM arm64v8/alpine:3.12.3@sha256:549694ea68340c26d1d85c00039aa11ad835be279bfd47
 FROM base-${ARCH}
 
 RUN adduser -D -h /usr/local/tor -s /bin/false tor tor && \
-    apk update && apk upgrade && apk add \
+    apk upgrade --no-cache && apk add \
     curl="7.69.1-r3" \
     tor="0.4.3.7-r0" && \
     rm -f /var/cache/apk/* && \