diff --git a/org.eclipse.sirius.tools.kit-feature/feature.xml b/org.eclipse.sirius.tools.kit-feature/feature.xml
index acda13c..84a298c 100644
--- a/org.eclipse.sirius.tools.kit-feature/feature.xml
+++ b/org.eclipse.sirius.tools.kit-feature/feature.xml
@@ -14,7 +14,7 @@
 <feature
       id="org.eclipse.sirius.tools.kit"
       label="%featureName"
-      version="23.9.0"
+      version="23.12.0"
       provider-name="%providerName"
       license-feature="org.eclipse.license"
       license-feature-version="0.0.0">
diff --git a/org.eclipse.sirius.tools.kit-feature/pom.xml b/org.eclipse.sirius.tools.kit-feature/pom.xml
index d98c91b..38f26ea 100644
--- a/org.eclipse.sirius.tools.kit-feature/pom.xml
+++ b/org.eclipse.sirius.tools.kit-feature/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>org.eclipse.sirius.tools</groupId>
     <artifactId>dev-kit</artifactId>
-    <version>23.9.0</version>
+    <version>23.12.0</version>
     <relativePath>..</relativePath>
   </parent>
   
diff --git a/org.eclipse.sirius.tools.kit-repo/pom.xml b/org.eclipse.sirius.tools.kit-repo/pom.xml
index 2416e33..d0aee19 100644
--- a/org.eclipse.sirius.tools.kit-repo/pom.xml
+++ b/org.eclipse.sirius.tools.kit-repo/pom.xml
@@ -19,7 +19,7 @@
   <parent>
     <groupId>org.eclipse.sirius.tools</groupId>
     <artifactId>dev-kit</artifactId>
-    <version>23.9.0</version>
+    <version>23.12.0</version>
     <relativePath>..</relativePath>
   </parent>
 
diff --git a/org.eclipse.sirius.tools.kit.target/sirius-kit.target b/org.eclipse.sirius.tools.kit.target/sirius-kit.target
index 3570a28..a2c326b 100644
--- a/org.eclipse.sirius.tools.kit.target/sirius-kit.target
+++ b/org.eclipse.sirius.tools.kit.target/sirius-kit.target
@@ -5,7 +5,7 @@
     <location includeMode="planner" includeAllPlatforms="false" includeSource="true" includeConfigurePhase="false" type="InstallableUnit">
       <unit id="org.eclipse.acceleo.feature.group" version="0.0.0"/>
       <unit id="org.eclipse.acceleo.sdk.feature.group" version="0.0.0"/>
-      <repository id="Acceleo-3.7" location="https://download.eclipse.org/acceleo/updates/releases/3.7/R202211151354"/>
+      <repository id="Acceleo-3.7" location="https://download.eclipse.org/acceleo/updates/releases/3.7/R202311201319"/>
     </location>
     <location includeMode="planner" includeAllPlatforms="false" includeSource="true" includeConfigurePhase="false" type="InstallableUnit">
       <unit id="org.eclipse.swtbot.ide.feature.group" version="0.0.0"/>
@@ -39,8 +39,7 @@
       <unit id="org.eclipse.wst.xml_ui.feature.feature.group" version="0.0.0"/>
       <unit id="org.eclipse.mylyn.wikitext_feature.feature.group" version="0.0.0"/>
       <unit id="org.eclipse.mylyn.wikitext.editors_feature.feature.group" version="0.0.0"/>
-      <unit id="org.eclipse.rcptt.platform.feature.group" version="0.0.0"/>
-      <repository id="Eclipse-2023-09" location="https://download.eclipse.org/releases/2023-09"/>
+      <repository id="Eclipse-2023-12" location="https://download.eclipse.org/releases/2023-12"/>
     </location>
   </locations>
 </target>
diff --git a/pom.xml b/pom.xml
index a7244ba..db7c6b0 100644
--- a/pom.xml
+++ b/pom.xml
@@ -16,7 +16,7 @@
 
   <groupId>org.eclipse.sirius.tools</groupId>
   <artifactId>dev-kit</artifactId>
-  <version>23.9.0</version>
+  <version>23.12.0</version>
   <packaging>pom</packaging>
 
   <name>Sirius Development Kit</name>
@@ -33,8 +33,8 @@
   </licenses>
 
   <properties>
-    <tycho-version>4.0.0</tycho-version>
-    <tycho-extras-version>4.0.0</tycho-extras-version>
+    <tycho-version>4.0.4</tycho-version>
+    <tycho-extras-version>4.0.4</tycho-extras-version>
     <target-platform-path>.</target-platform-path>
   </properties>
 
@@ -65,7 +65,7 @@
             <artifact>
               <groupId>org.eclipse.sirius.tools</groupId>
               <artifactId>dev-kit</artifactId>
-              <version>23.9.0</version>
+              <version>23.12.0</version>
               <classifier>./org.eclipse.sirius.tools.kit.target/sirius-kit</classifier>
             </artifact>
           </target>