diff --git a/plugins/config/repository.yaml b/plugins/config/repository.yaml
index 1dddbf7..7a0da56 100644
--- a/plugins/config/repository.yaml
+++ b/plugins/config/repository.yaml
@@ -33,98 +33,130 @@ projects:
             type: stable
           - name: osrf
             type: nightly
-    # Use nightlies in all main branches
+    # Use prereleases and nightlies in Ionic main branches
     - name: gz-cmake4
       repositories:
           - name: osrf
             type: stable
+          - name: osrf
+            type: prerelease
           - name: osrf
             type: nightly
     - name: gz-common6
       repositories:
           - name: osrf
             type: stable
+          - name: osrf
+            type: prerelease
           - name: osrf
             type: nightly
     - name: gz-msgs11
       repositories:
           - name: osrf
             type: stable
+          - name: osrf
+            type: prerelease
           - name: osrf
             type: nightly
     - name: gz-fuel-tools10
       repositories:
           - name: osrf
             type: stable
+          - name: osrf
+            type: prerelease
           - name: osrf
             type: nightly
     - name: gz-sim9
       repositories:
           - name: osrf
             type: stable
+          - name: osrf
+            type: prerelease
           - name: osrf
             type: nightly
     - name: gz-gui9
       repositories:
           - name: osrf
             type: stable
+          - name: osrf
+            type: prerelease
           - name: osrf
             type: nightly
     - name: gz-launch8
       repositories:
           - name: osrf
             type: stable
+          - name: osrf
+            type: prerelease
           - name: osrf
             type: nightly
     - name: gz-math8
       repositories:
           - name: osrf
             type: stable
+          - name: osrf
+            type: prerelease
           - name: osrf
             type: nightly
     - name: gz-physics8
       repositories:
           - name: osrf
             type: stable
+          - name: osrf
+            type: prerelease
           - name: osrf
             type: nightly
     - name: gz-plugin3
       repositories:
           - name: osrf
             type: stable
+          - name: osrf
+            type: prerelease
           - name: osrf
             type: nightly
     - name: gz-rendering9
       repositories:
           - name: osrf
             type: stable
+          - name: osrf
+            type: prerelease
           - name: osrf
             type: nightly
     - name: gz-sensors9
       repositories:
           - name: osrf
             type: stable
+          - name: osrf
+            type: prerelease
           - name: osrf
             type: nightly
-    - name: gz-tools3
+    - name: gz-transport14
       repositories:
           - name: osrf
             type: stable
+          - name: osrf
+            type: prerelease
           - name: osrf
             type: nightly
-    - name: gz-transport14
+    - name: gz-utils3
       repositories:
           - name: osrf
             type: stable
+          - name: osrf
+            type: prerelease
           - name: osrf
             type: nightly
-    - name: gz-utils3
+    - name: sdformat15
       repositories:
           - name: osrf
             type: stable
+          - name: osrf
+            type: prerelease
           - name: osrf
             type: nightly
-    - name: sdformat15
+
+    # Use nightlies in all main branches
+    - name: gz-tools3
       repositories:
           - name: osrf
             type: stable