diff --git a/releng/CDT.setup b/releng/CDT.setup
index 66621439719..01313578347 100644
--- a/releng/CDT.setup
+++ b/releng/CDT.setup
@@ -245,8 +245,6 @@
             url="https://download.eclipse.org/tools/cdt/releases/latest"/>
         <repository
             url="https://download.eclipse.org/tools/orbit/simrel/orbit-aggregation/2023-09"/>
-        <repository
-            url="https://download.eclipse.org/oomph/simrel-orbit/milestone/latest/"/>
         <repository
             url="https://download.eclipse.org/technology/swtbot/releases/latest"/>
         <repository