diff --git a/adapter-commons/src/main/resources/schema/commons.xml b/adapter-commons/src/main/resources/schema/commons.xml
index 73d01fd..1e40ed0 100644
--- a/adapter-commons/src/main/resources/schema/commons.xml
+++ b/adapter-commons/src/main/resources/schema/commons.xml
@@ -5,8 +5,7 @@
     <changeSet author="jakubpilimon" id="1.init">
        <createSequence sequenceName="hibernate_sequence" startValue="1" incrementBy="1" cacheSize="1"/>
     </changeSet>
-    <changeSet author="jakubpilimon" id="2.postgres.json" dbms="postgresql">
-        <sql>GRANT character varying TO PUBLIC</sql>
-        <sql>CREATE CAST (character varying AS jsonb) WITH INOUT AS ASSIGNMENT</sql>
-    </changeSet>
+    <!--<changeSet author="jakubpilimon" id="2.postgres.json" dbms="postgresql">-->
+        <!--<sql>CREATE CAST (VARCHAR AS jsonb) WITH INOUT AS ASSIGNMENT</sql>-->
+    <!--</changeSet>-->
 </databaseChangeLog>
diff --git a/adapter-commons/src/main/resources/schema/shortages-prediction.xml b/adapter-commons/src/main/resources/schema/shortages-prediction.xml
index 6bf377e..388486a 100644
--- a/adapter-commons/src/main/resources/schema/shortages-prediction.xml
+++ b/adapter-commons/src/main/resources/schema/shortages-prediction.xml
@@ -5,7 +5,7 @@
                    xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.4.xsd">
 
     <property name="json" value="clob" dbms="h2"/>
-    <property name="json" value="jsonb" dbms="postgresql"/>
+    <property name="json" value="text" dbms="postgresql"/>
 
     <changeSet author="jakubpilimon" id="1.shortages_prediction-init">
         <sql>