diff --git a/8.4/Dockerfile b/8.4/Dockerfile
index 845c39b567..9eb88d81de 100644
--- a/8.4/Dockerfile
+++ b/8.4/Dockerfile
@@ -18,7 +18,9 @@ RUN echo 'deb http://apt.postgresql.org/pub/repos/apt/ wheezy-pgdg main' $PG_MAJ
 RUN apt-get update \
 	&& apt-get install -y postgresql-common \
 	&& sed -ri 's/#(create_main_cluster) .*$/\1 = false/' /etc/postgresql-common/createcluster.conf \
-	&& apt-get install -y postgresql-$PG_MAJOR=$PG_VERSION
+	&& apt-get install -y \
+		postgresql-$PG_MAJOR=$PG_VERSION \
+		postgresql-contrib-$PG_MAJOR=$PG_VERSION
 
 ENV PATH /usr/lib/postgresql/$PG_MAJOR/bin:$PATH
 ENV PGDATA /var/lib/postgresql/data
diff --git a/9.0/Dockerfile b/9.0/Dockerfile
index 438a52a98d..bf7e2fb50c 100644
--- a/9.0/Dockerfile
+++ b/9.0/Dockerfile
@@ -18,7 +18,9 @@ RUN echo 'deb http://apt.postgresql.org/pub/repos/apt/ wheezy-pgdg main' $PG_MAJ
 RUN apt-get update \
 	&& apt-get install -y postgresql-common \
 	&& sed -ri 's/#(create_main_cluster) .*$/\1 = false/' /etc/postgresql-common/createcluster.conf \
-	&& apt-get install -y postgresql-$PG_MAJOR=$PG_VERSION
+	&& apt-get install -y \
+		postgresql-$PG_MAJOR=$PG_VERSION \
+		postgresql-contrib-$PG_MAJOR=$PG_VERSION
 
 ENV PATH /usr/lib/postgresql/$PG_MAJOR/bin:$PATH
 ENV PGDATA /var/lib/postgresql/data
diff --git a/9.1/Dockerfile b/9.1/Dockerfile
index 894a169f4d..9739a5686f 100644
--- a/9.1/Dockerfile
+++ b/9.1/Dockerfile
@@ -18,7 +18,9 @@ RUN echo 'deb http://apt.postgresql.org/pub/repos/apt/ wheezy-pgdg main' $PG_MAJ
 RUN apt-get update \
 	&& apt-get install -y postgresql-common \
 	&& sed -ri 's/#(create_main_cluster) .*$/\1 = false/' /etc/postgresql-common/createcluster.conf \
-	&& apt-get install -y postgresql-$PG_MAJOR=$PG_VERSION
+	&& apt-get install -y \
+		postgresql-$PG_MAJOR=$PG_VERSION \
+		postgresql-contrib-$PG_MAJOR=$PG_VERSION
 
 ENV PATH /usr/lib/postgresql/$PG_MAJOR/bin:$PATH
 ENV PGDATA /var/lib/postgresql/data
diff --git a/9.2/Dockerfile b/9.2/Dockerfile
index f2545fff3b..1ddb5f5272 100644
--- a/9.2/Dockerfile
+++ b/9.2/Dockerfile
@@ -18,7 +18,9 @@ RUN echo 'deb http://apt.postgresql.org/pub/repos/apt/ wheezy-pgdg main' $PG_MAJ
 RUN apt-get update \
 	&& apt-get install -y postgresql-common \
 	&& sed -ri 's/#(create_main_cluster) .*$/\1 = false/' /etc/postgresql-common/createcluster.conf \
-	&& apt-get install -y postgresql-$PG_MAJOR=$PG_VERSION
+	&& apt-get install -y \
+		postgresql-$PG_MAJOR=$PG_VERSION \
+		postgresql-contrib-$PG_MAJOR=$PG_VERSION
 
 ENV PATH /usr/lib/postgresql/$PG_MAJOR/bin:$PATH
 ENV PGDATA /var/lib/postgresql/data
diff --git a/9.3/Dockerfile b/9.3/Dockerfile
index 6c9336b315..90a6f347be 100644
--- a/9.3/Dockerfile
+++ b/9.3/Dockerfile
@@ -18,7 +18,9 @@ RUN echo 'deb http://apt.postgresql.org/pub/repos/apt/ wheezy-pgdg main' $PG_MAJ
 RUN apt-get update \
 	&& apt-get install -y postgresql-common \
 	&& sed -ri 's/#(create_main_cluster) .*$/\1 = false/' /etc/postgresql-common/createcluster.conf \
-	&& apt-get install -y postgresql-$PG_MAJOR=$PG_VERSION
+	&& apt-get install -y \
+		postgresql-$PG_MAJOR=$PG_VERSION \
+		postgresql-contrib-$PG_MAJOR=$PG_VERSION
 
 ENV PATH /usr/lib/postgresql/$PG_MAJOR/bin:$PATH
 ENV PGDATA /var/lib/postgresql/data
diff --git a/9.4/Dockerfile b/9.4/Dockerfile
index 4d303671b0..04eb6b0f3d 100644
--- a/9.4/Dockerfile
+++ b/9.4/Dockerfile
@@ -18,7 +18,9 @@ RUN echo 'deb http://apt.postgresql.org/pub/repos/apt/ wheezy-pgdg main' $PG_MAJ
 RUN apt-get update \
 	&& apt-get install -y postgresql-common \
 	&& sed -ri 's/#(create_main_cluster) .*$/\1 = false/' /etc/postgresql-common/createcluster.conf \
-	&& apt-get install -y postgresql-$PG_MAJOR=$PG_VERSION
+	&& apt-get install -y \
+		postgresql-$PG_MAJOR=$PG_VERSION \
+		postgresql-contrib-$PG_MAJOR=$PG_VERSION
 
 ENV PATH /usr/lib/postgresql/$PG_MAJOR/bin:$PATH
 ENV PGDATA /var/lib/postgresql/data