diff --git a/comanage-registry-postgres/Dockerfile b/comanage-registry-postgres/Dockerfile
index 5b0b5b5..06a3e0b 100644
--- a/comanage-registry-postgres/Dockerfile
+++ b/comanage-registry-postgres/Dockerfile
@@ -16,7 +16,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-FROM postgres
+FROM postgres:9.6
 
 ENV INIT_DIR /docker-entrypoint-initdb.d