diff --git a/3.6-rc/alpine/Dockerfile b/3.6-rc/alpine/Dockerfile
index dfa7ae6..fd542e3 100644
--- a/3.6-rc/alpine/Dockerfile
+++ b/3.6-rc/alpine/Dockerfile
@@ -53,7 +53,7 @@ RUN set -ex; \
 	wget -O rabbitmq-server.tar.xz     "https://github.com/rabbitmq/rabbitmq-server/releases/download/$RABBITMQ_GITHUB_TAG/rabbitmq-server-generic-unix-${RABBITMQ_VERSION}.tar.xz"; \
 	\
 	export GNUPGHOME="$(mktemp -d)"; \
-	gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$RABBITMQ_GPG_KEY"; \
+	gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys "$RABBITMQ_GPG_KEY"; \
 	gpg --batch --verify rabbitmq-server.tar.xz.asc rabbitmq-server.tar.xz; \
 	command -v gpgconf && gpgconf --kill all || :; \
 	rm -rf "$GNUPGHOME"; \
diff --git a/3.6-rc/debian/Dockerfile b/3.6-rc/debian/Dockerfile
index 525f92f..ab9645f 100644
--- a/3.6-rc/debian/Dockerfile
+++ b/3.6-rc/debian/Dockerfile
@@ -29,7 +29,7 @@ RUN set -eux; \
 	\
 # verify the signature
 	export GNUPGHOME="$(mktemp -d)"; \
-	gpg --keyserver ha.pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4; \
+	gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4; \
 	gpg --batch --verify /usr/local/bin/gosu.asc /usr/local/bin/gosu; \
 	command -v gpgconf && gpgconf --kill all || :; \
 	rm -rf "$GNUPGHOME" /usr/local/bin/gosu.asc; \
@@ -90,7 +90,7 @@ RUN set -eux; \
 	apt-get purge -y --auto-remove ca-certificates wget; \
 	\
 	export GNUPGHOME="$(mktemp -d)"; \
-	gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$RABBITMQ_GPG_KEY"; \
+	gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys "$RABBITMQ_GPG_KEY"; \
 	gpg --batch --verify rabbitmq-server.deb.asc rabbitmq-server.deb; \
 	command -v gpgconf && gpgconf --kill all || :; \
 	rm -rf "$GNUPGHOME"; \
diff --git a/3.6/alpine/Dockerfile b/3.6/alpine/Dockerfile
index 21c791b..d58c98a 100644
--- a/3.6/alpine/Dockerfile
+++ b/3.6/alpine/Dockerfile
@@ -53,7 +53,7 @@ RUN set -ex; \
 	wget -O rabbitmq-server.tar.xz     "https://github.com/rabbitmq/rabbitmq-server/releases/download/$RABBITMQ_GITHUB_TAG/rabbitmq-server-generic-unix-${RABBITMQ_VERSION}.tar.xz"; \
 	\
 	export GNUPGHOME="$(mktemp -d)"; \
-	gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$RABBITMQ_GPG_KEY"; \
+	gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys "$RABBITMQ_GPG_KEY"; \
 	gpg --batch --verify rabbitmq-server.tar.xz.asc rabbitmq-server.tar.xz; \
 	command -v gpgconf && gpgconf --kill all || :; \
 	rm -rf "$GNUPGHOME"; \
diff --git a/3.6/debian/Dockerfile b/3.6/debian/Dockerfile
index 930be7e..77aa8dc 100644
--- a/3.6/debian/Dockerfile
+++ b/3.6/debian/Dockerfile
@@ -29,7 +29,7 @@ RUN set -eux; \
 	\
 # verify the signature
 	export GNUPGHOME="$(mktemp -d)"; \
-	gpg --keyserver ha.pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4; \
+	gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4; \
 	gpg --batch --verify /usr/local/bin/gosu.asc /usr/local/bin/gosu; \
 	command -v gpgconf && gpgconf --kill all || :; \
 	rm -rf "$GNUPGHOME" /usr/local/bin/gosu.asc; \
@@ -90,7 +90,7 @@ RUN set -eux; \
 	apt-get purge -y --auto-remove ca-certificates wget; \
 	\
 	export GNUPGHOME="$(mktemp -d)"; \
-	gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$RABBITMQ_GPG_KEY"; \
+	gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys "$RABBITMQ_GPG_KEY"; \
 	gpg --batch --verify rabbitmq-server.deb.asc rabbitmq-server.deb; \
 	command -v gpgconf && gpgconf --kill all || :; \
 	rm -rf "$GNUPGHOME"; \
diff --git a/3.7-rc/alpine/Dockerfile b/3.7-rc/alpine/Dockerfile
index 172f772..c4656cb 100644
--- a/3.7-rc/alpine/Dockerfile
+++ b/3.7-rc/alpine/Dockerfile
@@ -53,7 +53,7 @@ RUN set -ex; \
 	wget -O rabbitmq-server.tar.xz     "https://github.com/rabbitmq/rabbitmq-server/releases/download/$RABBITMQ_GITHUB_TAG/rabbitmq-server-generic-unix-${RABBITMQ_VERSION}.tar.xz"; \
 	\
 	export GNUPGHOME="$(mktemp -d)"; \
-	gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$RABBITMQ_GPG_KEY"; \
+	gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys "$RABBITMQ_GPG_KEY"; \
 	gpg --batch --verify rabbitmq-server.tar.xz.asc rabbitmq-server.tar.xz; \
 	command -v gpgconf && gpgconf --kill all || :; \
 	rm -rf "$GNUPGHOME"; \
diff --git a/3.7-rc/debian/Dockerfile b/3.7-rc/debian/Dockerfile
index 78907a5..813e0d7 100644
--- a/3.7-rc/debian/Dockerfile
+++ b/3.7-rc/debian/Dockerfile
@@ -29,7 +29,7 @@ RUN set -eux; \
 	\
 # verify the signature
 	export GNUPGHOME="$(mktemp -d)"; \
-	gpg --keyserver ha.pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4; \
+	gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4; \
 	gpg --batch --verify /usr/local/bin/gosu.asc /usr/local/bin/gosu; \
 	rm -rf "$GNUPGHOME" /usr/local/bin/gosu.asc; \
 	\
@@ -110,7 +110,7 @@ RUN set -eux; \
 	apt-get purge -y --auto-remove ca-certificates wget; \
 	\
 	export GNUPGHOME="$(mktemp -d)"; \
-	gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$RABBITMQ_GPG_KEY"; \
+	gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys "$RABBITMQ_GPG_KEY"; \
 	gpg --batch --verify rabbitmq-server.deb.asc rabbitmq-server.deb; \
 	command -v gpgconf && gpgconf --kill all || :; \
 	rm -rf "$GNUPGHOME"; \
diff --git a/3.7/alpine/Dockerfile b/3.7/alpine/Dockerfile
index 857cc5b..55fae64 100644
--- a/3.7/alpine/Dockerfile
+++ b/3.7/alpine/Dockerfile
@@ -53,7 +53,7 @@ RUN set -ex; \
 	wget -O rabbitmq-server.tar.xz     "https://github.com/rabbitmq/rabbitmq-server/releases/download/$RABBITMQ_GITHUB_TAG/rabbitmq-server-generic-unix-${RABBITMQ_VERSION}.tar.xz"; \
 	\
 	export GNUPGHOME="$(mktemp -d)"; \
-	gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$RABBITMQ_GPG_KEY"; \
+	gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys "$RABBITMQ_GPG_KEY"; \
 	gpg --batch --verify rabbitmq-server.tar.xz.asc rabbitmq-server.tar.xz; \
 	command -v gpgconf && gpgconf --kill all || :; \
 	rm -rf "$GNUPGHOME"; \
diff --git a/3.7/debian/Dockerfile b/3.7/debian/Dockerfile
index 3620998..b370e3e 100644
--- a/3.7/debian/Dockerfile
+++ b/3.7/debian/Dockerfile
@@ -29,7 +29,7 @@ RUN set -eux; \
 	\
 # verify the signature
 	export GNUPGHOME="$(mktemp -d)"; \
-	gpg --keyserver ha.pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4; \
+	gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4; \
 	gpg --batch --verify /usr/local/bin/gosu.asc /usr/local/bin/gosu; \
 	command -v gpgconf && gpgconf --kill all || :; \
 	rm -rf "$GNUPGHOME" /usr/local/bin/gosu.asc; \
@@ -111,7 +111,7 @@ RUN set -eux; \
 	apt-get purge -y --auto-remove ca-certificates wget; \
 	\
 	export GNUPGHOME="$(mktemp -d)"; \
-	gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$RABBITMQ_GPG_KEY"; \
+	gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys "$RABBITMQ_GPG_KEY"; \
 	gpg --batch --verify rabbitmq-server.deb.asc rabbitmq-server.deb; \
 	command -v gpgconf && gpgconf --kill all || :; \
 	rm -rf "$GNUPGHOME"; \