diff --git a/Jenkinsfile b/Jenkinsfile
index 476648ed..1523ce5c 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -23,7 +23,7 @@ pipeline {
     BUILD_TIMESTAMP = sh(returnStdout: true, script: 'date +%Y%m%d%H%M').trim()
     TYCHO_VERSION = '4.0.3'
     TARGET_PLATFORM_PRIMARY = 'eclipse_2023_03-xtext_2_31_0'
-    TARGET_PLATFORM_LATEST = 'eclipse_2023_09-xtext_nightly'
+    TARGET_PLATFORM_LATEST = 'eclipse_2023_12-xtext_nightly'
   }
 
   parameters {
diff --git a/org.eclipse.xpect.releng/maven-plugin-parent/pom.xml b/org.eclipse.xpect.releng/maven-plugin-parent/pom.xml
index 21888684..a10558f9 100644
--- a/org.eclipse.xpect.releng/maven-plugin-parent/pom.xml
+++ b/org.eclipse.xpect.releng/maven-plugin-parent/pom.xml
@@ -294,15 +294,15 @@
 			</build>
 		</profile>
 		<profile>
-			<id>eclipse_2023_09-xtext_nightly</id>
+			<id>eclipse_2023_12-xtext_nightly</id>
 			<activation>
 				<property>
 					<name>target-platform</name>
-					<value>eclipse_2023_09-xtext_nightly</value>
+					<value>eclipse_2023_12-xtext_nightly</value>
 				</property>
 			</activation>
 			<modules>
-				<module>../target-platforms/eclipse_2023_09-xtext_nightly</module>
+				<module>../target-platforms/eclipse_2023_12-xtext_nightly</module>
 			</modules>
 		</profile>
 		<profile>
diff --git a/org.eclipse.xpect.releng/target-platforms/eclipse_2023_09-xtext_nightly/org.eclipse.xpect.target.eclipse_2023_09-xtext_nightly.target b/org.eclipse.xpect.releng/target-platforms/eclipse_2023_12-xtext_nightly/org.eclipse.xpect.target.eclipse_2023_12-xtext_nightly.target
similarity index 95%
rename from org.eclipse.xpect.releng/target-platforms/eclipse_2023_09-xtext_nightly/org.eclipse.xpect.target.eclipse_2023_09-xtext_nightly.target
rename to org.eclipse.xpect.releng/target-platforms/eclipse_2023_12-xtext_nightly/org.eclipse.xpect.target.eclipse_2023_12-xtext_nightly.target
index 3110bb42..bfa49038 100644
--- a/org.eclipse.xpect.releng/target-platforms/eclipse_2023_09-xtext_nightly/org.eclipse.xpect.target.eclipse_2023_09-xtext_nightly.target
+++ b/org.eclipse.xpect.releng/target-platforms/eclipse_2023_12-xtext_nightly/org.eclipse.xpect.target.eclipse_2023_12-xtext_nightly.target
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <?pde version="3.8"?>
-<target name="Xpect Target Definition (Eclipse 2023-09)" sequenceNumber="32">
+<target name="Xpect Target Definition (Eclipse 2023-12)" sequenceNumber="32">
 <locations>
 <location includeAllPlatforms="false" includeConfigurePhase="false" includeMode="planner" includeSource="true" type="InstallableUnit">
 <unit id="de.itemis.xtext.antlr.sdk.feature.group" version="2.1.1.v201405091103"/>
@@ -20,7 +20,7 @@
 <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.hamcrest.core" version="2.2.0.v20230809-1000"/>
@@ -28,7 +28,7 @@
 <unit id="org.junit" version="4.13.2.v20230809-1000"/>
 <unit id="org.junit.source" version="4.13.2.v20230809-1000"/>
 <unit id="io.github.classgraph" version="0.0.0"/>
-<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>
\ No newline at end of file
diff --git a/org.eclipse.xpect.releng/target-platforms/eclipse_2023_09-xtext_nightly/pom.xml b/org.eclipse.xpect.releng/target-platforms/eclipse_2023_12-xtext_nightly/pom.xml
similarity index 94%
rename from org.eclipse.xpect.releng/target-platforms/eclipse_2023_09-xtext_nightly/pom.xml
rename to org.eclipse.xpect.releng/target-platforms/eclipse_2023_12-xtext_nightly/pom.xml
index dfab6254..b0f6bb41 100644
--- a/org.eclipse.xpect.releng/target-platforms/eclipse_2023_09-xtext_nightly/pom.xml
+++ b/org.eclipse.xpect.releng/target-platforms/eclipse_2023_12-xtext_nightly/pom.xml
@@ -14,7 +14,7 @@ Contributors:
 	<modelVersion>4.0.0</modelVersion>
 	<version>0.3.0-SNAPSHOT</version>
 	<groupId>org.eclipse.xpect</groupId>
-	<artifactId>org.eclipse.xpect.target.eclipse_2023_09-xtext_nightly</artifactId>
+	<artifactId>org.eclipse.xpect.target.eclipse_2023_12-xtext_nightly</artifactId>
 	<packaging>eclipse-target-definition</packaging>
 	<parent>
 		<groupId>org.eclipse.xpect</groupId>