diff --git a/releng/CDT.setup b/releng/CDT.setup
index 6b064458154..ef615819827 100644
--- a/releng/CDT.setup
+++ b/releng/CDT.setup
@@ -282,7 +282,7 @@
           <repository
               url="https://download.eclipse.org/cbi/updates/license/"/>
           <repository
-              url="https://download.eclipse.org/eclipse/updates/4.15milestones/S-4.15M1-202001100905/"/>
+              url="https://download.eclipse.org/eclipse/updates/4.15milestones/S-4.15M3-202002191800/"/>
           <repository
               url="https://download.eclipse.org/linuxtools/updates-docker-nightly/"/>
           <repository
@@ -310,6 +310,8 @@
           </repository>
           <repository
               url="https://download.eclipse.org/tools/orbit/downloads/2020-03/"/>
+          <repository
+              url="https://download.eclipse.org/tools/orbit/downloads/2019-12/"/>
           <repository
               url="https://download.eclipse.org/tools/ptp/builds/remote/3.0/2020-03-M2/"/>
         </repositoryList>
diff --git a/releng/org.eclipse.cdt.target/cdt.target b/releng/org.eclipse.cdt.target/cdt.target
index b5baa2778e7..65780a868da 100644
--- a/releng/org.eclipse.cdt.target/cdt.target
+++ b/releng/org.eclipse.cdt.target/cdt.target
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <?pde version="3.8"?>
-<target name="cdt" sequenceNumber="73">
+<target name="cdt" sequenceNumber="74">
 <locations>
 <location includeAllPlatforms="false" includeConfigurePhase="false" includeMode="planner" includeSource="true" type="InstallableUnit">
 <unit id="org.eclipse.license.feature.group" version="0.0.0"/>
@@ -11,7 +11,7 @@
 <unit id="org.eclipse.jdt.annotation" version="0.0.0"/>
 <unit id="org.eclipse.sdk.feature.group" version="0.0.0"/>
 <unit id="org.eclipse.test.feature.group" version="0.0.0"/>
-<repository location="https://download.eclipse.org/eclipse/updates/4.15milestones/S-4.15M1-202001100905/"/>
+<repository location="https://download.eclipse.org/eclipse/updates/4.15milestones/S-4.15M3-202002191800/"/>
 </location>
 <location includeAllPlatforms="false" includeConfigurePhase="false" includeMode="planner" includeSource="true" type="InstallableUnit">
 <unit id="org.eclipse.linuxtools.docker.feature.feature.group" version="0.0.0"/>
@@ -74,6 +74,10 @@
 <repository location="https://download.eclipse.org/tools/orbit/downloads/2020-03/"/>
 </location>
 <location includeAllPlatforms="false" includeConfigurePhase="false" includeMode="planner" includeSource="true" type="InstallableUnit">
+<!-- This is needed temporarily because of https://bugs.eclipse.org/bugs/show_bug.cgi?id=560438 -->
+<repository location="https://download.eclipse.org/tools/orbit/downloads/2019-12/"/>
+</location>
+<location includeAllPlatforms="false" includeConfigurePhase="false" includeMode="planner" includeSource="true" type="InstallableUnit">
 <unit id="org.eclipse.remote.console.feature.group" version="0.0.0"/>
 <unit id="org.eclipse.remote.feature.group" version="0.0.0"/>
 <unit id="org.eclipse.remote.serial.feature.group" version="0.0.0"/>