diff --git a/.idea/.gitignore b/.idea/.gitignore
index 3ad53bc..f50cf27 100644
--- a/.idea/.gitignore
+++ b/.idea/.gitignore
@@ -5,6 +5,5 @@
 /dataSources.local.xml
 /compiler.xml
 /uiDesigner.xml
-/dataSources.xml
 /sonarlint/
 /jarRepositories.xml
\ No newline at end of file
diff --git a/.idea/dataSources.xml b/.idea/dataSources.xml
new file mode 100644
index 0000000..7b7cef8
--- /dev/null
+++ b/.idea/dataSources.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="DataSourceManagerImpl" format="xml" multifile-model="true">
+    <data-source source="LOCAL" name="json_test@localhost" uuid="1191ff9a-6823-4b18-af90-483ddf0e4b69">
+      <driver-ref>postgresql</driver-ref>
+      <synchronize>true</synchronize>
+      <jdbc-driver>org.postgresql.Driver</jdbc-driver>
+      <jdbc-url>jdbc:postgresql://localhost:5555/json_test</jdbc-url>
+      <working-dir>$ProjectFileDir$</working-dir>
+    </data-source>
+  </component>
+</project>
\ No newline at end of file
diff --git a/docker-compose.yml b/docker-compose.yml
index 09dc326..0e8ea03 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,6 +1,6 @@
 # To execute this docker-compose yml file use docker-compose -f <file_name> up
 # Add the "-d" flag at the end for detached execution
-version: '3.7'
+version: '3.8'
 services:
   db:
     container_name: postgres_json
diff --git a/docker/postgresql/Dockerfile b/docker/postgresql/Dockerfile
index f315eb7..feacb49 100644
--- a/docker/postgresql/Dockerfile
+++ b/docker/postgresql/Dockerfile
@@ -1,4 +1,4 @@
-FROM postgres:11
+FROM postgres:13
 
 COPY postgresql.conf /tmp/postgresql.conf
 COPY extension.sh    /docker-entrypoint-initdb.d/000-extension.sh
diff --git a/docker/postgresql/postgresql.conf b/docker/postgresql/postgresql.conf
index fd24ea8..1cb589f 100644
--- a/docker/postgresql/postgresql.conf
+++ b/docker/postgresql/postgresql.conf
@@ -664,5 +664,3 @@ log_rotation_size = 100MB
 #------------------------------------------------------------------------------
 
 # Add settings for extensions here
-
-zdb.default_elasticsearch_url = 'http://elasticsearch:9200/'