diff --git a/Dockerfile-alpine.template b/Dockerfile-alpine.template
index c3c259af8b..8cb5dd8121 100644
--- a/Dockerfile-alpine.template
+++ b/Dockerfile-alpine.template
@@ -75,7 +75,10 @@ RUN set -xe; \
 		wget -O php.tar.xz.asc "$PHP_ASC_URL"; \
 		export GNUPGHOME="$(mktemp -d)"; \
 		for key in $GPG_KEYS; do \
-			gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$key"; \
+			gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$key" \
+			|| gpg --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys "$key" \
+			|| gpg --keyserver hkp://p80.pool.sks-keyservers.net:80  --recv-keys "$key" \
+			|| gpg --keyserver pgp.mit.edu --recv-keys "$key"; \
 		done; \
 		gpg --batch --verify php.tar.xz.asc php.tar.xz; \
 		rm -rf "$GNUPGHOME"; \
diff --git a/Dockerfile-debian.template b/Dockerfile-debian.template
index feed902569..48d02c835c 100644
--- a/Dockerfile-debian.template
+++ b/Dockerfile-debian.template
@@ -83,7 +83,10 @@ RUN set -xe; \
 		wget -O php.tar.xz.asc "$PHP_ASC_URL"; \
 		export GNUPGHOME="$(mktemp -d)"; \
 		for key in $GPG_KEYS; do \
-			gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$key"; \
+			gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$key" \
+			|| gpg --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys "$key" \
+			|| gpg --keyserver hkp://p80.pool.sks-keyservers.net:80  --recv-keys "$key" \
+			|| gpg --keyserver pgp.mit.edu --recv-keys "$key"; \
 		done; \
 		gpg --batch --verify php.tar.xz.asc php.tar.xz; \
 		rm -rf "$GNUPGHOME"; \