Merge pull request #130 from lesiak/postgresql-driver-upgrade

Upgrade postgresql driver to 42.7.3

Author: tomix26

pom.xml

@@ -142,7 +142,7 @@
         <dependency>
             <groupId>org.postgresql</groupId>
             <artifactId>postgresql</artifactId>
-            <version>42.3.5</version>
+            <version>42.7.3</version>
         </dependency>
         <dependency>
             <groupId>junit</groupId>