diff --git a/Dockerfile b/Dockerfile
index 3f8a1e4..1b98a46 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,10 +1,11 @@
-FROM alpine:3.11 AS builder
+FROM alpine:3.12 AS builder
 
 ENV VERSION=v1.17.0
 
 RUN apk add --no-cache \
     alpine-sdk \
     python3-dev \
+    py3-pip \
     libffi-dev \
     openssl-dev \
     zlib-dev \
@@ -20,6 +21,7 @@ RUN adduser -h /var/lib/matrix-synapse -u 2222 -D -G matrix-synapse matrix-synap
 
 RUN apk add --no-cache \
     python3 \
+    py3-pip \
     py3-psycopg2 \
     py3-jinja2 \
     libffi \