diff --git a/photark-appengine-webapp/pom.xml b/photark-appengine-webapp/pom.xml
index ddca2a5..a3e9533 100644
--- a/photark-appengine-webapp/pom.xml
+++ b/photark-appengine-webapp/pom.xml
@@ -46,26 +46,30 @@
 		<dependency>
 			<groupId>org.apache.tuscany.sca</groupId>
 			<artifactId>tuscany-host-webapp</artifactId>
-			<version>2.0-M4</version>
+			<version>${tuscany.version}</version>
+
 		</dependency>
 
 		<dependency>
 			<groupId>org.apache.tuscany.sca</groupId>
 			<artifactId>tuscany-data-api</artifactId>
-			<version>2.0-M4</version>
+			<version>${tuscany.version}</version>
+
 		</dependency>
 
 		<dependency>
 			<groupId>org.apache.tuscany.sca</groupId>
 			<artifactId>tuscany-implementation-java-runtime</artifactId>
-			<version>2.0-M4</version>
+			<version>${tuscany.version}</version>
+
 			<scope>runtime</scope>
 		</dependency>
 
 		<dependency>
 			<groupId>org.apache.tuscany.sca</groupId>
 			<artifactId>tuscany-binding-jsonrpc-runtime</artifactId>
-			<version>2.0-M4</version>
+			<version>${tuscany.version}</version>
+
 			<scope>runtime</scope>
 		</dependency>
 
diff --git a/photark-filesystem/pom.xml b/photark-filesystem/pom.xml
index a503233..549d9b1 100644
--- a/photark-filesystem/pom.xml
+++ b/photark-filesystem/pom.xml
@@ -32,7 +32,8 @@
 		<dependency>
 			<groupId>org.apache.tuscany.sca</groupId>
 			<artifactId>tuscany-sca-api</artifactId>
-			<version>2.0-M4</version>
+			<version>${tuscany.version}</version>
+
 		</dependency>
 
 		<dependency>
diff --git a/photark-jcr/pom.xml b/photark-jcr/pom.xml
index 1208593..9800d09 100644
--- a/photark-jcr/pom.xml
+++ b/photark-jcr/pom.xml
@@ -39,13 +39,15 @@
 		<dependency>
 			<groupId>org.apache.tuscany.sca</groupId>
 			<artifactId>tuscany-sca-api</artifactId>
-			<version>2.0-M4</version>
+			<version>${tuscany.version}</version>
+
 		</dependency>
 
 		<dependency>
 			<groupId>org.apache.tuscany.sca</groupId>
 			<artifactId>tuscany-data-api</artifactId>
-			<version>2.0-M4</version>
+			<version>${tuscany.version}</version>
+
 		</dependency>
 
 		<!-- JackRabbit Dependencies -->
diff --git a/photark-ui-admin/pom.xml b/photark-ui-admin/pom.xml
index da93b1f..46998e1 100644
--- a/photark-ui-admin/pom.xml
+++ b/photark-ui-admin/pom.xml
@@ -39,20 +39,23 @@
         <dependency>
             <groupId>org.apache.tuscany.sca</groupId>
             <artifactId>tuscany-data-api</artifactId>
-            <version>2.0-M4</version>
+            <version>${tuscany.version}</version>
+
         </dependency>
 
         <dependency>
             <groupId>org.apache.tuscany.sca</groupId>
             <artifactId>tuscany-implementation-java-runtime</artifactId>
-            <version>2.0-M4</version>
+            <version>${tuscany.version}</version>
+
             <scope>runtime</scope>
         </dependency>
 
         <dependency>
             <groupId>org.apache.tuscany.sca</groupId>
             <artifactId>tuscany-binding-jsonrpc-runtime</artifactId>
-            <version>2.0-M4</version>
+            <version>${tuscany.version}</version>
+
             <scope>runtime</scope>
         </dependency>
         
diff --git a/photark-webapp/pom.xml b/photark-webapp/pom.xml
index 06ad272..2b5635c 100644
--- a/photark-webapp/pom.xml
+++ b/photark-webapp/pom.xml
@@ -59,33 +59,38 @@
 		<dependency>
 			<groupId>org.apache.tuscany.sca</groupId>
 			<artifactId>tuscany-host-webapp</artifactId>
-			<version>2.0-M4</version>
+			<version>${tuscany.version}</version>
+
 		</dependency>
 
 		<dependency>
 			<groupId>org.apache.tuscany.sca</groupId>
 			<artifactId>tuscany-data-api</artifactId>
-			<version>2.0-M4</version>
+			<version>${tuscany.version}</version>
+
 		</dependency>
 
 		<dependency>
 			<groupId>org.apache.tuscany.sca</groupId>
 			<artifactId>tuscany-implementation-java-runtime</artifactId>
-			<version>2.0-M4</version>
+			<version>${tuscany.version}</version>
+
 			<scope>runtime</scope>
 		</dependency>
 
 		<dependency>
 			<groupId>org.apache.tuscany.sca</groupId>
 			<artifactId>tuscany-binding-jsonrpc-runtime</artifactId>
-			<version>2.0-M4</version>
+			<version>${tuscany.version}</version>
+
 			<scope>runtime</scope>
 		</dependency>
 		
 		<dependency>
 			<groupId>org.apache.tuscany.sca</groupId>
 			<artifactId>tuscany-binding-http-runtime</artifactId>
-			<version>2.0-M4</version>
+			<version>${tuscany.version}</version>
+
 			<scope>runtime</scope>
 		</dependency>
 		
diff --git a/photark/pom.xml b/photark/pom.xml
index 2349637..7123e89 100644
--- a/photark/pom.xml
+++ b/photark/pom.xml
@@ -32,26 +32,30 @@
 		<dependency>
 			<groupId>org.apache.tuscany.sca</groupId>
 			<artifactId>tuscany-sca-api</artifactId>
-			<version>2.0-M4</version>
+			<version>${tuscany.version}</version>
+
 		</dependency>
 
 		<dependency>
 			<groupId>org.apache.tuscany.sca</groupId>
 			<artifactId>tuscany-data-api</artifactId>
-			<version>2.0-M4</version>
+			<version>${tuscany.version}</version>
+
 		</dependency>
 
 		<dependency>
 			<groupId>org.apache.tuscany.sca</groupId>
 			<artifactId>tuscany-implementation-java-runtime</artifactId>
-			<version>2.0-M4</version>
+			<version>${tuscany.version}</version>
+
 			<scope>runtime</scope>
 		</dependency>
 
 		<dependency>
 			<groupId>org.apache.tuscany.sca</groupId>
 			<artifactId>tuscany-binding-atom-runtime</artifactId>
-			<version>2.0-M4</version>
+			<version>${tuscany.version}</version>
+
 		</dependency>
 
 		<dependency>
diff --git a/pom.xml b/pom.xml
index 2531427..eb0cb0e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -85,6 +85,7 @@
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+        <tuscany.version>2.0-M4</tuscany.version>
      </properties>
     
     <repositories>