diff --git a/gradle/p2-deployment.gradle b/gradle/p2-deployment.gradle
index 4e64da785..dfc319edc 100644
--- a/gradle/p2-deployment.gradle
+++ b/gradle/p2-deployment.gradle
@@ -21,7 +21,7 @@ p2gen {
 		feature 'org.eclipse.emf.mwe2.language.sdk'
 	}
 	dependencies {
-		repositoryUrl 'http://download.eclipse.org/releases/luna/201502271000'
+		repositoryUrl 'http://download.eclipse.org/releases/oxygen/201804111000'
 	}
 	dependencies {
 		repositoryUrl 'http://download.eclipse.org/tools/orbit/downloads/drops/R20180606145124/repository'
diff --git a/releng/releng-target/xtext-core.target.target b/releng/releng-target/xtext-core.target.target
index f062eabe6..686481c5d 100644
--- a/releng/releng-target/xtext-core.target.target
+++ b/releng/releng-target/xtext-core.target.target
@@ -11,7 +11,7 @@
 			<unit id="org.eclipse.emf.mwe2.language.sdk.feature.group" version="0.0.0"/>
 		</location>
 		<location includeAllPlatforms="false" includeConfigurePhase="false" includeMode="planner" includeSource="false" type="InstallableUnit">
-			<repository location="http://download.eclipse.org/releases/luna/201502271000"/>
+			<repository location="http://download.eclipse.org/releases/oxygen/201804111000"/>
 		</location>
 		<location includeAllPlatforms="false" includeConfigurePhase="false" includeMode="planner" includeSource="true" type="InstallableUnit">
 			<repository location="http://download.eclipse.org/tools/orbit/downloads/drops/R20180606145124/repository"/>