diff --git a/.idea/codeStyles/Project.xml b/.idea/codeStyles/Project.xml
index 85e6648..04771c0 100644
--- a/.idea/codeStyles/Project.xml
+++ b/.idea/codeStyles/Project.xml
@@ -16,6 +16,15 @@
       <option name="IMPORT_NESTED_CLASSES" value="true" />
       <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
     </JetCodeStyleSettings>
+    <SqlCodeStyleSettings version="6">
+      <option name="KEYWORD_CASE" value="1" />
+      <option name="IDENTIFIER_CASE" value="1" />
+      <option name="TYPE_CASE" value="1" />
+      <option name="CUSTOM_TYPE_CASE" value="1" />
+      <option name="ALIAS_CASE" value="1" />
+      <option name="BUILT_IN_CASE" value="1" />
+      <option name="QUOTE_IDENTIFIER" value="1" />
+    </SqlCodeStyleSettings>
     <codeStyleSettings language="kotlin">
       <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
       <indentOptions>
diff --git a/.idea/dataSources.xml b/.idea/dataSources.xml
index 7b7cef8..322c147 100644
--- a/.idea/dataSources.xml
+++ b/.idea/dataSources.xml
@@ -1,11 +1,11 @@
 <?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">
+    <data-source source="LOCAL" name="PostgreSQL - 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>
+      <jdbc-url>jdbc:postgresql://localhost:35555/json_test</jdbc-url>
       <working-dir>$ProjectFileDir$</working-dir>
     </data-source>
   </component>
diff --git a/docker-compose.yml b/docker-compose.yml
index e36c83c..31ff62c 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -8,7 +8,7 @@ services:
       context: docker/postgresql
     restart: always
     ports:
-      - "5555:5432"
+      - "35555:5432"
     environment:
       POSTGRES_DB: json_test
       POSTGRES_USER: test
diff --git a/docker/postgresql/Dockerfile b/docker/postgresql/Dockerfile
index feacb49..a0282a0 100644
--- a/docker/postgresql/Dockerfile
+++ b/docker/postgresql/Dockerfile
@@ -1,4 +1,4 @@
-FROM postgres:13
+FROM postgres:15
 
 COPY postgresql.conf /tmp/postgresql.conf
 COPY extension.sh    /docker-entrypoint-initdb.d/000-extension.sh