diff --git a/maven-all/maven-unused-dependencies/pom.xml b/maven-all/maven-unused-dependencies/pom.xml
index 312f38ed93..19a06fc605 100644
--- a/maven-all/maven-unused-dependencies/pom.xml
+++ b/maven-all/maven-unused-dependencies/pom.xml
@@ -10,21 +10,38 @@
         <dependency>
             <groupId>commons-collections</groupId>
             <artifactId>commons-collections</artifactId>
-            <version>3.2.2</version>
+            <version>${commons-collections.version}</version>
         </dependency>
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-api</artifactId>
-            <version>1.7.25</version>
+            <version>${slf4j-api.version}</version>
         </dependency>
     </dependencies>
 
     <build>
         <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>${maven-compiler-plugin.version}</version>
+                <configuration>
+                    <source>1.8</source>
+                    <target>1.8</target>
+                </configuration>
+            </plugin>
             <plugin>
                 <artifactId>maven-dependency-plugin</artifactId>
-                <version>3.1.1</version>
+                <version>${maven-dependency-plugin.version}</version>
             </plugin>
         </plugins>
     </build>
+
+    <properties>
+        <commons-collections.version>3.2.2</commons-collections.version>
+        <slf4j-api.version>1.7.25</slf4j-api.version>
+        <maven-dependency-plugin.version>3.1.1</maven-dependency-plugin.version>
+        <maven-compiler-plugin.version>3.1</maven-compiler-plugin.version>
+    </properties>
+
 </project>
\ No newline at end of file