diff --git a/Dockerfile b/Dockerfile
index ca279e4..b249c05 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,33 +1,33 @@
-FROM docker.io/alpine:3.16 AS builder
+FROM docker.io/alpine:3.17 AS builder
 
-ENV VERSION=v1.71.0
+ENV VERSION=v1.72.0
 
 RUN apk add --no-cache \
-    alpine-sdk \
-    python3-dev \
-    py3-pip \
+  alpine-sdk \
+  python3-dev \
+  py3-pip \
 	py3-wheel \
-    libffi-dev \
-    openssl-dev \
-    zlib-dev \
-    jpeg-dev \
-    rust
+  libffi-dev \
+  openssl-dev \
+  zlib-dev \
+  jpeg-dev \
+  rust
 
 RUN pip3 install --target="/install" matrix-synapse==$VERSION
 
-FROM docker.io/thallian/confd-env:3.16
+FROM docker.io/thallian/confd-env:3.17
 
 RUN addgroup -g 2222 matrix-synapse
 RUN adduser -h /var/lib/matrix-synapse -u 2222 -D -G matrix-synapse matrix-synapse
 
 RUN apk add --no-cache \
-    python3 \
-    py3-psycopg2 \
-    py3-authlib \
-    libffi \
-    openssl \
-    zlib \
-    jpeg
+  python3 \
+  py3-psycopg2 \
+  py3-authlib \
+  libffi \
+  openssl \
+  zlib \
+  jpeg
 
 ENV PYTHONPATH=$PYTHONPATH:/py-pkgs
 COPY --from=builder /install /py-pkgs