diff --git a/pom.xml b/pom.xml
index 73b9dbb..6714af9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -96,6 +96,8 @@
         <maven.github-site-plugin.version>0.9</maven.github-site-plugin.version>
         <protoc-maven-plugin.version>0.0.1</protoc-maven-plugin.version>
         <coveralls-extensions-maven-plugin.version>0.0.3</coveralls-extensions-maven-plugin.version>
+        <lz4.version>1.3.0</lz4.version>
+        <kryo.version>2.16</kryo.version>
     </properties>
 
     <build>
diff --git a/projects/serialization/pom.xml b/projects/serialization/pom.xml
index 6c31684..ba90faf 100644
--- a/projects/serialization/pom.xml
+++ b/projects/serialization/pom.xml
@@ -42,38 +42,38 @@
             <version>${project.version}</version>
         </dependency>
         <dependency>
-            <groupId>com.esotericsoftware.kryo</groupId>
-            <artifactId>kryo</artifactId>
-            <version>2.16</version>
+            <groupId>commons-io</groupId>
+            <artifactId>commons-io</artifactId>
+            <version>${commons-io.version}</version>
         </dependency>
         <dependency>
-            <groupId>com.fasterxml.jackson.core</groupId>
-            <artifactId>jackson-databind</artifactId>
-            <version>2.4.4</version>
+            <groupId>org.no-hope</groupId>
+            <artifactId>slf4j-logging</artifactId>
+            <version>${project.version}</version>
         </dependency>
         <dependency>
-            <groupId>commons-io</groupId>
-            <artifactId>commons-io</artifactId>
-            <version>2.4</version>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-lang3</artifactId>
+            <version>${commons-lang3.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-databind</artifactId>
+            <version>${jackson.version}</version>
         </dependency>
         <dependency>
             <groupId>net.jpountz.lz4</groupId>
             <artifactId>lz4</artifactId>
-            <version>1.3.0</version>
+            <version>${lz4.version}</version>
         </dependency>
         <dependency>
-            <groupId>org.no-hope</groupId>
-            <artifactId>slf4j-logging</artifactId>
-            <version>${project.version}</version>
+            <groupId>com.esotericsoftware.kryo</groupId>
+            <artifactId>kryo</artifactId>
+            <version>${kryo.version}</version>
         </dependency>
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
         </dependency>
-        <dependency>
-            <groupId>org.apache.commons</groupId>
-            <artifactId>commons-lang3</artifactId>
-            <version>3.3</version>
-        </dependency>
     </dependencies>
 </project>