diff --git a/plugins/config/repository.yaml b/plugins/config/repository.yaml
index a6ae3c6..642dd90 100644
--- a/plugins/config/repository.yaml
+++ b/plugins/config/repository.yaml
@@ -130,6 +130,13 @@ projects:
             type: stable
           - name: osrf
             type: nightly
+    # Use pre-releases for gz-sim for testing gz-msgs 10.1.0
+    - name: gz-sim8
+      repositories:
+          - name: osrf
+            type: stable
+          - name: osrf
+            type: prerelease
     # generic regexp
     - name: gazebo.*
       repositories: