diff --git a/Dockerfile b/Dockerfile
index c10e70e..966e379 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,15 +1,17 @@
 ARG ARCH
-FROM amd64/debian:10.7-slim@sha256:b1af07039fe341833982bae85a2724ac8600ec5c74c37277c7a6ef7cddfb2cd0 AS base-amd64
-FROM arm32v7/debian:10.7-slim@sha256:d31590f680577ffde6bd08943e9590eaabdc04529ea60f4bb6f58cddbc33f628 AS base-arm
-FROM arm64v8/debian:10.7-slim@sha256:01b65c2928fed9427e59a679e287a75d98551ea2061cf03c61be0c7e1fc40fef AS base-arm64
+FROM amd64/alpine:3.12.3@sha256:074d3636ebda6dd446d0d00304c4454f468237fdacf08fb0eeac90bdbfa1bac7 AS base-amd64
+FROM arm32v7/alpine:3.12.3@sha256:299294be8699c1b323c137f972fd0aa5eaa4b95489c213091dcf46ef39b6c810 AS base-arm
+FROM arm64v8/alpine:3.12.3@sha256:549694ea68340c26d1d85c00039aa11ad835be279bfd475ff4284b705f92c24e AS base-arm64
 FROM base-${ARCH}
 
-RUN apt-get update && apt-get upgrade -y && apt-get install -y \
-    curl="7.64.0-4+deb10u1" \
-    tor="0.3.5.12-1" && \
-    apt-get clean && \
-    rm -rf /var/lib/apt/lists/* && \
-    useradd --system -M --shell /usr/sbin/nologin tor
+RUN adduser -D -h /usr/local/tor -s /bin/false tor tor && \
+    apk update && apk add \
+    curl="7.69.1-r3" \
+    tor="0.4.3.7-r0" && \
+    rm -f /var/cache/apk/* && \
+    mkdir /web && \
+    chown -R tor /web /etc/tor && \
+    chmod 700 /web
 
 COPY entrypoint.sh /
 
@@ -17,4 +19,4 @@ VOLUME /web
 
 USER tor
 
-ENTRYPOINT ["/entrypoint.sh"]
+ENTRYPOINT ["sh", "/entrypoint.sh"]