diff --git a/build.xml b/build.xml
index 42977757c..0473d1b19 100644
--- a/build.xml
+++ b/build.xml
@@ -80,8 +80,8 @@
 
 		<property name="Name" value="${jsbml.Name}" />
 		<property name="name" value="jsbml" />
-		<property name="version" value="1.3-SNAPSHOT" />
-		<property name="api.version" value="1.2" />
+		<property name="version" value="1.3" />
+		<property name="api.version" value="1.333/>
 
 		<property name="year" value="${YEAR}" />
 
diff --git a/core/build.xml b/core/build.xml
index 7662ef681..e40b3bc0a 100644
--- a/core/build.xml
+++ b/core/build.xml
@@ -75,8 +75,8 @@
 		
 		<property name="Name" value="JSBML"/>
 		<property name="name" value="jsbml"/>
-		<property name="version" value="1.3-SNAPSHOT"/>
-		<property name="api.version" value="1.2"/>
+		<property name="version" value="1.3"/>
+		<property name="api.version" value="1.3"/>
 
 		<property name="year" value="${YEAR}"/>
 
diff --git a/core/src/org/sbml/jsbml/JSBML.java b/core/src/org/sbml/jsbml/JSBML.java
index 60e504f4b..0926c5cd9 100644
--- a/core/src/org/sbml/jsbml/JSBML.java
+++ b/core/src/org/sbml/jsbml/JSBML.java
@@ -77,7 +77,7 @@ public class JSBML {
   /**
    * The current version number of JSBML.
    */
-  private static final String jsbmlVersion = "1.3-SNAPSHOT"; // TODO: replace automatically this version number with [BUILD.NUMBER]
+  private static final String jsbmlVersion = "1.3"; // TODO: replace automatically this version number with [BUILD.NUMBER]
   /**
    * 
    */
diff --git a/dev/maven/pom.xml b/dev/maven/pom.xml
index f8692b4c6..6bc595176 100644
--- a/dev/maven/pom.xml
+++ b/dev/maven/pom.xml
@@ -25,7 +25,7 @@
 
   <groupId>org.sbml.jsbml</groupId>
   <artifactId>jsbml</artifactId>
-  <version>1.3-SNAPSHOT</version>
+  <version>1.3</version>
   <packaging>jar</packaging>
    <name>JSBML</name>
   <inceptionYear>2009</inceptionYear>
diff --git a/jsbml-build.properties b/jsbml-build.properties
index 5b21bf671..bd6b9ff9a 100644
--- a/jsbml-build.properties
+++ b/jsbml-build.properties
@@ -1,8 +1,8 @@
 
 jsbml.Name=JSBML
 jsbml.name=jsbml
-jsbml.version=1.3-SNAPSHOT
-jsbml.api.version=1.2
+jsbml.version=1.3
+jsbml.api.version=1.3
 jsbml.groupId=org.sbml.jsbml
 jsbml.artifactId=jsbml-parent
 jsbml.build.javac.source=1.7
diff --git a/modules/android/pom.xml b/modules/android/pom.xml
index 8532b329f..728230ee6 100644
--- a/modules/android/pom.xml
+++ b/modules/android/pom.xml
@@ -25,7 +25,7 @@
     <parent>
         <groupId>org.sbml.jsbml.modules</groupId>
         <artifactId>modules</artifactId>
-        <version>1.3-SNAPSHOT</version>
+        <version>1.3</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/modules/celldesigner/pom.xml b/modules/celldesigner/pom.xml
index 4839094da..6ce5f95d6 100644
--- a/modules/celldesigner/pom.xml
+++ b/modules/celldesigner/pom.xml
@@ -24,7 +24,7 @@
 	<parent>
 		<groupId>org.sbml.jsbml.modules</groupId>
 		<artifactId>modules</artifactId>
-		<version>1.3-SNAPSHOT</version>
+		<version>1.3</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
diff --git a/modules/compare/pom.xml b/modules/compare/pom.xml
index 241724805..0b2547c0e 100644
--- a/modules/compare/pom.xml
+++ b/modules/compare/pom.xml
@@ -24,7 +24,7 @@
 	<parent>
 		<groupId>org.sbml.jsbml.modules</groupId>
 		<artifactId>modules</artifactId>
-		<version>1.3-SNAPSHOT</version>
+		<version>1.3</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
diff --git a/modules/libSBMLcompat/pom.xml b/modules/libSBMLcompat/pom.xml
index f80b8502d..6ae878841 100644
--- a/modules/libSBMLcompat/pom.xml
+++ b/modules/libSBMLcompat/pom.xml
@@ -25,7 +25,7 @@
     <parent>
         <groupId>org.sbml.jsbml.modules</groupId>
         <artifactId>modules</artifactId>
-        <version>1.3-SNAPSHOT</version>
+        <version>1.3</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/modules/libSBMLio/pom.xml b/modules/libSBMLio/pom.xml
index bda91b3d8..516bfa53f 100644
--- a/modules/libSBMLio/pom.xml
+++ b/modules/libSBMLio/pom.xml
@@ -24,7 +24,7 @@
 	<parent>
 		<groupId>org.sbml.jsbml.modules</groupId>
 		<artifactId>modules</artifactId>
-		<version>1.3-SNAPSHOT</version>
+		<version>1.3</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
diff --git a/modules/offline-validator/pom.xml b/modules/offline-validator/pom.xml
index c6093f032..202969c1c 100644
--- a/modules/offline-validator/pom.xml
+++ b/modules/offline-validator/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>org.sbml.jsbml.modules</groupId>
 		<artifactId>modules</artifactId>
-		<version>1.3-SNAPSHOT</version>
+		<version>1.3</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
@@ -65,13 +65,13 @@
 		<dependency>
 			<groupId>org.sbml.jsbml.ext</groupId>
 			<artifactId>jsbml-layout</artifactId>
-			<version>1.3-SNAPSHOT</version>
+			<version>1.3</version>
 		</dependency>
 
 		<dependency>
 			<groupId>org.sbml.jsbml</groupId>
 			<artifactId>jsbml-core</artifactId>
-			<version>1.3-SNAPSHOT</version>
+			<version>1.3</version>
 		</dependency>
 
 		<!-- http://mvnrepository.com/artifact/com.googlecode.json-simple/json-simple -->