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-rw-r--r--docs/sources/examples/postgresql_service.Dockerfile2
1 files changed, 1 insertions, 1 deletions
diff --git a/docs/sources/examples/postgresql_service.Dockerfile b/docs/sources/examples/postgresql_service.Dockerfile
index af1423f258..219a537882 100644
--- a/docs/sources/examples/postgresql_service.Dockerfile
+++ b/docs/sources/examples/postgresql_service.Dockerfile
@@ -7,7 +7,7 @@ MAINTAINER SvenDowideit@docker.com
# Add the PostgreSQL PGP key to verify their Debian packages.
# It should be the same key as https://www.postgresql.org/media/keys/ACCC4CF8.asc
-RUN apt-key adv --keyserver keyserver.ubuntu.com --recv-keys B97B0AFCAA1A47F044F244A07FCC7D46ACCC4CF8
+RUN apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys B97B0AFCAA1A47F044F244A07FCC7D46ACCC4CF8
# Add PostgreSQL's repository. It contains the most recent stable release
# of PostgreSQL, ``9.3``.