diff --git a/plugins/org.eclipse.justj.codegen/src/org/eclipse/justj/codegen/templates/releng/parent/POMXML.java b/plugins/org.eclipse.justj.codegen/src/org/eclipse/justj/codegen/templates/releng/parent/POMXML.java
index 7e09ffd..cca869b 100644
--- a/plugins/org.eclipse.justj.codegen/src/org/eclipse/justj/codegen/templates/releng/parent/POMXML.java
+++ b/plugins/org.eclipse.justj.codegen/src/org/eclipse/justj/codegen/templates/releng/parent/POMXML.java
@@ -106,7 +106,7 @@
   protected static final String _80 = "<include>about.mappings</include>";
   protected static final String _81 = "<includePackedArtifacts>true</includePackedArtifacts>";
   protected static final String _82 = "<includes>";
-  protected static final String _83 = "<jarsigner-version>1.1.7</jarsigner-version>";
+  protected static final String _83 = "<jarsigner-version>1.3.1</jarsigner-version>";
   protected static final String _84 = "<jgit.dirtyWorkingTree>warning</jgit.dirtyWorkingTree>";
   protected static final String _85 = "<jgit.ignore>pom.xml</jgit.ignore>";
   protected static final String _86 = "<layout>p2</layout>";
diff --git a/plugins/org.eclipse.justj.codegen/templates/releng/parent/pom.xml.jet b/plugins/org.eclipse.justj.codegen/templates/releng/parent/pom.xml.jet
index f8c4ed3..08b51dd 100644
--- a/plugins/org.eclipse.justj.codegen/templates/releng/parent/pom.xml.jet
+++ b/plugins/org.eclipse.justj.codegen/templates/releng/parent/pom.xml.jet
@@ -28,7 +28,7 @@
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <tycho.scmUrl>scm:git:https://git.eclipse.org/r/p/justj/org.eclipse.justj.git</tycho.scmUrl>
     <tycho-version>1.7.0</tycho-version>
-    <jarsigner-version>1.1.7</jarsigner-version>
+    <jarsigner-version>1.3.1</jarsigner-version>
     <os-jvm-flags/>
   </properties>
 
diff --git a/releng/org.eclipse.justj.tools.parent/pom.xml b/releng/org.eclipse.justj.tools.parent/pom.xml
index 12e4019..147f13e 100644
--- a/releng/org.eclipse.justj.tools.parent/pom.xml
+++ b/releng/org.eclipse.justj.tools.parent/pom.xml
@@ -24,7 +24,7 @@
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <tycho.scmUrl>scm:git:https://git.eclipse.org/r/p/justj/org.eclipse.justj.git</tycho.scmUrl>
     <tycho-version>1.7.0</tycho-version>
-    <jarsigner-version>1.1.7</jarsigner-version>
+    <jarsigner-version>1.3.1</jarsigner-version>
     <os-jvm-flags/>
     <org.eclipse.justj.eclipse.repository>http://download.eclipse.org/releases/2020-06</org.eclipse.justj.eclipse.repository>
   </properties>