diff --git a/Dockerfile b/Dockerfile
index 3457b11..dbc26c3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,12 +1,13 @@
 FROM tomcat:9.0.75-jre17
 
 RUN apt update && apt install unzip -y && \
+    wget --no-verbose -O /usr/local/tomcat/lib/postgresql.jar https://jdbc.postgresql.org/download/postgresql-42.6.0.jar && \
     wget --no-verbose -O /tmp/orbeon.zip "https://github.com/orbeon/orbeon-forms/releases/download/tag-release-2022.1-ce/orbeon-2022.1.202212310353-CE.zip" && \
     cd /tmp && unzip orbeon.zip && \
     mkdir deploy && cd deploy && \
     unzip $(find .. -name orbeon.war) && \
     mv /tmp/deploy /usr/local/tomcat/webapps/orbeon && \
     rm -rf /tmp/orbeon.zip /tmp/deploy /var/cache/apt
 
 EXPOSE 8080
 CMD ["catalina.sh", "run"]
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..e962a47
--- /dev/null
+++ b/README.md
@@ -0,0 +1,5 @@
+## Docker image for Orbeon Forms CE
+
+This image deploys Tomcat 9 with the Orbeon Forms CE war,
+and PostgreSQL JDBC.
+