diff --git a/1.7.0/Dockerfile b/1.7.0/Dockerfile
index 134d654..c87322a 100644
--- a/1.7.0/Dockerfile
+++ b/1.7.0/Dockerfile
@@ -28,27 +28,37 @@
     libnspr4-0d \
   && rm -rf /var/lib/apt/lists/*
 
-# grab gosu for easy step-down from root
 ENV GOSU_VERSION 1.10
-RUN set -x \
-        && apt-get update && apt-get install -y --no-install-recommends ca-certificates wget && rm -rf /var/lib/apt/lists/* \
-        && wget -O /usr/local/bin/gosu "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$(dpkg --print-architecture)" \
-        && wget -O /usr/local/bin/gosu.asc "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$(dpkg --print-architecture).asc" \
-        && export GNUPGHOME="$(mktemp -d)" \
-        && gpg --keyserver ha.pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4 \
-        && gpg --batch --verify /usr/local/bin/gosu.asc /usr/local/bin/gosu \
-        && rm -rf "$GNUPGHOME" /usr/local/bin/gosu.asc \
-        && chmod +x /usr/local/bin/gosu \
-        && gosu nobody true \
-&& apt-get purge -y --auto-remove wget
-
-# grab tini for signal handling
-ENV TINI_VERSION v0.16.1
-ADD https://github.com/krallin/tini/releases/download/${TINI_VERSION}/tini /usr/local/bin/tini
-ADD https://github.com/krallin/tini/releases/download/${TINI_VERSION}/tini.asc /usr/local/bin/tini.asc
-RUN gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 595E85A6B1B4779EA4DAAEC70B588DFF0527A9B7 \
- && gpg --batch --verify /usr/local/bin/tini.asc /usr/local/bin/tini \
-&& chmod +x /usr/local/bin/tini
+ENV TINI_VERSION 0.16.1
+RUN set -ex; \
+    \
+    apt-get update; \
+    apt-get install -y --no-install-recommends wget; \
+    rm -rf /var/lib/apt/lists/*; \
+    \
+    dpkgArch="$(dpkg --print-architecture | awk -F- '{ print $NF }')"; \
+    \
+# install gosu
+    wget -O /usr/local/bin/gosu "https://github.com/tianon/gosu/releases/download/${GOSU_VERSION}/gosu-$dpkgArch"; \
+    wget -O /usr/local/bin/gosu.asc "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$dpkgArch.asc"; \
+    export GNUPGHOME="$(mktemp -d)"; \
+    gpg --keyserver ha.pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4; \
+    gpg --batch --verify /usr/local/bin/gosu.asc /usr/local/bin/gosu; \
+    rm -r "$GNUPGHOME" /usr/local/bin/gosu.asc; \
+    chmod +x /usr/local/bin/gosu; \
+    gosu nobody true; \
+    \
+# install tini
+    wget -O /usr/local/bin/tini "https://github.com/krallin/tini/releases/download/v${TINI_VERSION}/tini-$dpkgArch"; \
+    wget -O /usr/local/bin/tini.asc "https://github.com/krallin/tini/releases/download/v${TINI_VERSION}/tini-$dpkgArch.asc"; \
+    export GNUPGHOME="$(mktemp -d)"; \
+    gpg --keyserver ha.pool.sks-keyservers.net --recv-keys 595E85A6B1B4779EA4DAAEC70B588DFF0527A9B7; \
+    gpg --batch --verify /usr/local/bin/tini.asc /usr/local/bin/tini; \
+    rm -r "$GNUPGHOME" /usr/local/bin/tini.asc; \
+    chmod +x /usr/local/bin/tini; \
+    tini --version; \
+    \
+    apt-get purge -y --auto-remove wget
 
 # https://www.apache.org/dist/couchdb/KEYS
 ENV GPG_KEYS \
@@ -102,7 +112,6 @@
   && sed -e 's!/usr/local/var/log/couchdb/couch.log$!/dev/null!' -i /usr/local/etc/couchdb/default.ini
 
 COPY ./docker-entrypoint.sh /
-RUN chmod +x /docker-entrypoint.sh
 
 # Define mountable directories.
 VOLUME ["/usr/local/var/lib/couchdb"]