diff --git a/org.eclipse.emf.ecoretools.build/pom.xml b/org.eclipse.emf.ecoretools.build/pom.xml
index f890a32..b18956c 100644
--- a/org.eclipse.emf.ecoretools.build/pom.xml
+++ b/org.eclipse.emf.ecoretools.build/pom.xml
@@ -289,7 +289,7 @@
           <plugin>
             <groupId>org.eclipse.cbi.maven.plugins</groupId>
             <artifactId>eclipse-jarsigner-plugin</artifactId>
-            <version>1.0.4</version>
+            <version>1.3.1</version>
             <executions>
               <execution>
                 <id>sign</id>