diff --git a/releng/org.eclipse.amalgam.releng/target_platforms/mars.target b/releng/org.eclipse.amalgam.releng/target_platforms/mars.target
index 6fbe74f..f0acb62 100644
--- a/releng/org.eclipse.amalgam.releng/target_platforms/mars.target
+++ b/releng/org.eclipse.amalgam.releng/target_platforms/mars.target
@@ -13,7 +13,7 @@
     <location includeMode="planner" includeAllPlatforms="false" includeSource="true" includeConfigurePhase="false" type="InstallableUnit">
       <unit id="org.eclipse.sirius.runtime.feature.group" version="0.0.0"/>
       <unit id="org.eclipse.sirius.runtime.ide.ui.feature.group" version="0.0.0"/>
-      <repository location="http://download.eclipse.org/sirius/updates/releases/4.1.0/mars/"/>
+      <repository location="http://download.eclipse.org/sirius/updates/stable/4.1.9-S20180222-100510/mars"/>
     </location>
     <location includeMode="planner" includeAllPlatforms="false" includeSource="true" includeConfigurePhase="false" type="InstallableUnit">
       <unit id="org.eclipse.license.feature.group" version="0.0.0"/>
diff --git a/releng/org.eclipse.amalgam.releng/target_platforms/mars.targetplatform b/releng/org.eclipse.amalgam.releng/target_platforms/mars.targetplatform
index 3009d56..f37fffb 100644
--- a/releng/org.eclipse.amalgam.releng/target_platforms/mars.targetplatform
+++ b/releng/org.eclipse.amalgam.releng/target_platforms/mars.targetplatform
@@ -7,7 +7,7 @@
 	org.junit lazy
 }
 
-location "http://download.eclipse.org/sirius/updates/releases/4.1.0/mars/" {
+location "http://download.eclipse.org/sirius/updates/stable/4.1.9-S20180222-100510/mars" {
 	org.eclipse.sirius.runtime.feature.group lazy
 	org.eclipse.sirius.runtime.ide.ui.feature.group lazy
 }
diff --git a/releng/org.eclipse.amalgam.releng/target_platforms/neon.target b/releng/org.eclipse.amalgam.releng/target_platforms/neon.target
index 5b8ebfa..37c31af 100644
--- a/releng/org.eclipse.amalgam.releng/target_platforms/neon.target
+++ b/releng/org.eclipse.amalgam.releng/target_platforms/neon.target
@@ -13,7 +13,7 @@
     <location includeMode="planner" includeAllPlatforms="false" includeSource="true" includeConfigurePhase="false" type="InstallableUnit">
       <unit id="org.eclipse.sirius.runtime.feature.group" version="0.0.0"/>
       <unit id="org.eclipse.sirius.runtime.ide.ui.feature.group" version="0.0.0"/>
-      <repository location="http://download.eclipse.org/sirius/updates/releases/4.1.0/neon/"/>
+      <repository location="http://download.eclipse.org/sirius/updates/stable/4.1.9-S20180222-100510/neon"/>
     </location>
     <location includeMode="planner" includeAllPlatforms="false" includeSource="true" includeConfigurePhase="false" type="InstallableUnit">
       <unit id="org.eclipse.license.feature.group" version="0.0.0"/>
diff --git a/releng/org.eclipse.amalgam.releng/target_platforms/neon.targetplatform b/releng/org.eclipse.amalgam.releng/target_platforms/neon.targetplatform
index 686ed5b..c918355 100644
--- a/releng/org.eclipse.amalgam.releng/target_platforms/neon.targetplatform
+++ b/releng/org.eclipse.amalgam.releng/target_platforms/neon.targetplatform
@@ -7,7 +7,7 @@
 	org.junit lazy
 }
 
-location "http://download.eclipse.org/sirius/updates/releases/4.1.0/neon/" {
+location "http://download.eclipse.org/sirius/updates/stable/4.1.9-S20180222-100510/neon" {
 	org.eclipse.sirius.runtime.feature.group lazy
 	org.eclipse.sirius.runtime.ide.ui.feature.group lazy
 }