diff --git a/algebricks/algebricks-common/pom.xml b/algebricks/algebricks-common/pom.xml
index a5677a5..c93fe3e 100644
--- a/algebricks/algebricks-common/pom.xml
+++ b/algebricks/algebricks-common/pom.xml
@@ -16,8 +16,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>2.0.2</version>
         <configuration>
-          <source>1.6</source>
-          <target>1.6</target>
+          <source>1.7</source>
+          <target>1.7</target>
         </configuration>
       </plugin>
     </plugins>
diff --git a/algebricks/algebricks-compiler/pom.xml b/algebricks/algebricks-compiler/pom.xml
index 8dc083d..f1f4521 100644
--- a/algebricks/algebricks-compiler/pom.xml
+++ b/algebricks/algebricks-compiler/pom.xml
@@ -16,8 +16,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>2.0.2</version>
         <configuration>
-          <source>1.6</source>
-          <target>1.6</target>
+          <source>1.7</source>
+          <target>1.7</target>
         </configuration>
       </plugin>
     </plugins>
diff --git a/algebricks/algebricks-core/pom.xml b/algebricks/algebricks-core/pom.xml
index a74a540..118ea57 100644
--- a/algebricks/algebricks-core/pom.xml
+++ b/algebricks/algebricks-core/pom.xml
@@ -16,8 +16,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>2.0.2</version>
         <configuration>
-          <source>1.6</source>
-          <target>1.6</target>
+          <source>1.7</source>
+          <target>1.7</target>
         </configuration>
       </plugin>
     </plugins>
diff --git a/algebricks/algebricks-data/pom.xml b/algebricks/algebricks-data/pom.xml
index 3d927d9..3f7592a 100644
--- a/algebricks/algebricks-data/pom.xml
+++ b/algebricks/algebricks-data/pom.xml
@@ -16,8 +16,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>2.0.2</version>
         <configuration>
-          <source>1.6</source>
-          <target>1.6</target>
+          <source>1.7</source>
+          <target>1.7</target>
         </configuration>
       </plugin>
     </plugins>
diff --git a/algebricks/algebricks-examples/piglet-example/pom.xml b/algebricks/algebricks-examples/piglet-example/pom.xml
index 954938a..ea36fb6 100644
--- a/algebricks/algebricks-examples/piglet-example/pom.xml
+++ b/algebricks/algebricks-examples/piglet-example/pom.xml
@@ -16,8 +16,8 @@
 				<artifactId>maven-compiler-plugin</artifactId>
 				<version>2.0.2</version>
 				<configuration>
-					<source>1.6</source>
-					<target>1.6</target>
+					<source>1.7</source>
+					<target>1.7</target>
 				</configuration>
 			</plugin>
 			<plugin>
diff --git a/algebricks/algebricks-rewriter/pom.xml b/algebricks/algebricks-rewriter/pom.xml
index 41979d3..448221d 100644
--- a/algebricks/algebricks-rewriter/pom.xml
+++ b/algebricks/algebricks-rewriter/pom.xml
@@ -16,8 +16,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>2.0.2</version>
         <configuration>
-          <source>1.6</source>
-          <target>1.6</target>
+          <source>1.7</source>
+          <target>1.7</target>
         </configuration>
       </plugin>
     </plugins>
diff --git a/algebricks/algebricks-runtime/pom.xml b/algebricks/algebricks-runtime/pom.xml
index e40dfb0..70243d2 100644
--- a/algebricks/algebricks-runtime/pom.xml
+++ b/algebricks/algebricks-runtime/pom.xml
@@ -16,8 +16,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>2.0.2</version>
         <configuration>
-          <source>1.6</source>
-          <target>1.6</target>
+          <source>1.7</source>
+          <target>1.7</target>
         </configuration>
       </plugin>
     </plugins>
diff --git a/algebricks/algebricks-tests/pom.xml b/algebricks/algebricks-tests/pom.xml
index 19e6711..228baa9 100644
--- a/algebricks/algebricks-tests/pom.xml
+++ b/algebricks/algebricks-tests/pom.xml
@@ -16,8 +16,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>2.0.2</version>
         <configuration>
-          <source>1.6</source>
-          <target>1.6</target>
+          <source>1.7</source>
+          <target>1.7</target>
         </configuration>
       </plugin>
       <plugin>