Upgrade JDK to 14 and Based Image to Focal (20.04 LTS)
diff --git a/full/Dockerfile b/full/Dockerfile
index ce640f0..0d93c72 100644
--- a/full/Dockerfile
+++ b/full/Dockerfile
@@ -9,11 +9,11 @@
 # 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 ubuntu:bionic as base
+FROM ubuntu:focal as base
 RUN apt-get update
 
 FROM base as dependencies
-ARG JRE='openjdk-11-jre-headless'
+ARG JRE='openjdk-14-jre-headless'
 
 RUN DEBIAN_FRONTEND=noninteractive apt-get -y install $JRE gdal-bin tesseract-ocr \
         tesseract-ocr-eng tesseract-ocr-ita tesseract-ocr-fra tesseract-ocr-spa tesseract-ocr-deu
diff --git a/minimal/Dockerfile b/minimal/Dockerfile
index e8fa563..28b2f8d 100644
--- a/minimal/Dockerfile
+++ b/minimal/Dockerfile
@@ -9,11 +9,11 @@
 # 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 ubuntu:bionic as base
+FROM ubuntu:focal as base
 RUN apt-get update
 
 FROM base as dependencies
-ARG JRE='openjdk-11-jre-headless'
+ARG JRE='openjdk-14-jre-headless'
 
 RUN DEBIAN_FRONTEND=noninteractive apt-get -y install $JRE