diff --git a/domainmodel/2.33.0/org.eclipse.xtext.example.domainmodel.releng/tp/domainmodel.target b/domainmodel/2.33.0/org.eclipse.xtext.example.domainmodel.releng/tp/domainmodel.target
index 59abc94a..ea843454 100644
--- a/domainmodel/2.33.0/org.eclipse.xtext.example.domainmodel.releng/tp/domainmodel.target
+++ b/domainmodel/2.33.0/org.eclipse.xtext.example.domainmodel.releng/tp/domainmodel.target
@@ -23,7 +23,7 @@
         Just mention the p2 repo so that additional requirements with ranges specified in
         features and bundles are taken from Orbit (e.g., objectweb.asm)
       -->
-      <repository location="https://download.eclipse.org/tools/orbit/simrel/orbit-aggregation/2023-09"/>
+      <repository location="https://download.eclipse.org/tools/orbit/simrel/orbit-aggregation/2023-12"/>
     </location>
   </locations>
 </target>
diff --git a/greetings-tycho/2.33.0/org.xtext.example.mydsl.target/org.xtext.example.mydsl.target.target b/greetings-tycho/2.33.0/org.xtext.example.mydsl.target/org.xtext.example.mydsl.target.target
index bcd83a25..af151796 100644
--- a/greetings-tycho/2.33.0/org.xtext.example.mydsl.target/org.xtext.example.mydsl.target.target
+++ b/greetings-tycho/2.33.0/org.xtext.example.mydsl.target/org.xtext.example.mydsl.target.target
@@ -8,7 +8,7 @@
 			<unit id="org.eclipse.pde.feature.group" version="0.0.0"/>
 			<unit id="org.eclipse.draw2d.feature.group" version="0.0.0"/>
 			<unit id="org.eclipse.emf.sdk.feature.group" version="0.0.0"/>
-			<repository location="https://download.eclipse.org/releases/2023-09"/>
+			<repository location="https://download.eclipse.org/releases/2023-12"/>
 		</location>
 		<location includeAllPlatforms="false" includeConfigurePhase="false" includeMode="planner" includeSource="true" type="InstallableUnit">
 			<unit id="org.eclipse.emf.mwe2.launcher.feature.group" version="0.0.0"/>