diff --git a/1.7/Dockerfile b/1.7/Dockerfile
index 51e9355..b979ae3 100644
--- a/1.7/Dockerfile
+++ b/1.7/Dockerfile
@@ -12,8 +12,14 @@ RUN set -x \
 	&& chmod +x /usr/local/bin/gosu \
 	&& gosu nobody true
 
+RUN set -ex; \
 # https://artifacts.elastic.co/GPG-KEY-elasticsearch
-RUN apt-key adv --keyserver ha.pool.sks-keyservers.net --recv-keys 46095ACC8548582C1A2699A9D27D666CD88E42B4
+	key='46095ACC8548582C1A2699A9D27D666CD88E42B4'; \
+	export GNUPGHOME="$(mktemp -d)"; \
+	gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$key"; \
+	gpg --export "$key" > /etc/apt/trusted.gpg.d/elastic.gpg; \
+	rm -r "$GNUPGHOME"; \
+	apt-key list
 
 # https://www.elastic.co/guide/en/elasticsearch/reference/current/setup-repositories.html
 # https://www.elastic.co/guide/en/elasticsearch/reference/5.0/deb.html
diff --git a/2.4/Dockerfile b/2.4/Dockerfile
index 2a0a7a2..d7d1013 100644
--- a/2.4/Dockerfile
+++ b/2.4/Dockerfile
@@ -12,8 +12,14 @@ RUN set -x \
 	&& chmod +x /usr/local/bin/gosu \
 	&& gosu nobody true
 
+RUN set -ex; \
 # https://artifacts.elastic.co/GPG-KEY-elasticsearch
-RUN apt-key adv --keyserver ha.pool.sks-keyservers.net --recv-keys 46095ACC8548582C1A2699A9D27D666CD88E42B4
+	key='46095ACC8548582C1A2699A9D27D666CD88E42B4'; \
+	export GNUPGHOME="$(mktemp -d)"; \
+	gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$key"; \
+	gpg --export "$key" > /etc/apt/trusted.gpg.d/elastic.gpg; \
+	rm -r "$GNUPGHOME"; \
+	apt-key list
 
 # https://www.elastic.co/guide/en/elasticsearch/reference/current/setup-repositories.html
 # https://www.elastic.co/guide/en/elasticsearch/reference/5.0/deb.html
diff --git a/5/Dockerfile b/5/Dockerfile
index ae6e823..a8b0b1a 100644
--- a/5/Dockerfile
+++ b/5/Dockerfile
@@ -12,8 +12,14 @@ RUN set -x \
 	&& chmod +x /usr/local/bin/gosu \
 	&& gosu nobody true
 
+RUN set -ex; \
 # https://artifacts.elastic.co/GPG-KEY-elasticsearch
-RUN apt-key adv --keyserver ha.pool.sks-keyservers.net --recv-keys 46095ACC8548582C1A2699A9D27D666CD88E42B4
+	key='46095ACC8548582C1A2699A9D27D666CD88E42B4'; \
+	export GNUPGHOME="$(mktemp -d)"; \
+	gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$key"; \
+	gpg --export "$key" > /etc/apt/trusted.gpg.d/elastic.gpg; \
+	rm -r "$GNUPGHOME"; \
+	apt-key list
 
 # https://www.elastic.co/guide/en/elasticsearch/reference/current/setup-repositories.html
 # https://www.elastic.co/guide/en/elasticsearch/reference/5.0/deb.html
diff --git a/Dockerfile-debian.template b/Dockerfile-debian.template
index 4204239..1681829 100644
--- a/Dockerfile-debian.template
+++ b/Dockerfile-debian.template
@@ -12,8 +12,14 @@ RUN set -x \
 	&& chmod +x /usr/local/bin/gosu \
 	&& gosu nobody true
 
+RUN set -ex; \
 # https://artifacts.elastic.co/GPG-KEY-elasticsearch
-RUN apt-key adv --keyserver ha.pool.sks-keyservers.net --recv-keys 46095ACC8548582C1A2699A9D27D666CD88E42B4
+	key='46095ACC8548582C1A2699A9D27D666CD88E42B4'; \
+	export GNUPGHOME="$(mktemp -d)"; \
+	gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$key"; \
+	gpg --export "$key" > /etc/apt/trusted.gpg.d/elastic.gpg; \
+	rm -r "$GNUPGHOME"; \
+	apt-key list
 
 # https://www.elastic.co/guide/en/elasticsearch/reference/current/setup-repositories.html
 # https://www.elastic.co/guide/en/elasticsearch/reference/5.0/deb.html