diff --git a/CHANGELOG b/CHANGELOG
index 74eaac5ef..fe93097e8 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,5 @@
+0.2.4
+  * fix FORMAT clause append for queries, ending with comment
 0.2.3
   * added support for Decimals in RowBinary protocol
 0.2.2
diff --git a/pom.xml b/pom.xml
index d1645eb10..7408cd4f9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
 
     <groupId>ru.yandex.clickhouse</groupId>
     <artifactId>clickhouse-jdbc</artifactId>
-    <version>0.2.3</version>
+    <version>0.2.4</version>
     <packaging>jar</packaging>
 
     <name>clickhouse-jdbc</name>
@@ -147,8 +147,8 @@
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>3.2</version>
                 <configuration>
-                    <source>1.6</source>
-                    <target>1.6</target>
+                    <source>7</source>
+                    <target>7</target>
                     <showDeprecation>true</showDeprecation>
                     <showWarnings>true</showWarnings>
                     <fork>true</fork>