diff --git a/.zuul.yaml b/.zuul.yaml
index 30e53976a5..8e20f6ed34 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -726,7 +726,6 @@
     description: Rocky Linux 9 Blue Onyx platform test
     nodeset: devstack-single-node-rockylinux-9
     timeout: 9000
-    voting: false
     vars:
       configure_swap_size: 4096
 
diff --git a/stack.sh b/stack.sh
index 28576d1e14..ccd2d16baa 100755
--- a/stack.sh
+++ b/stack.sh
@@ -394,6 +394,13 @@ elif [[ $DISTRO == "rhel9" ]]; then
     sudo dnf config-manager --set-enabled crb
     # rabbitmq and other packages are provided by RDO repositories.
     _install_rdo
+
+    # Some distributions (Rocky Linux 9) provide curl-minimal instead of curl,
+    # it triggers a conflict when devstack wants to install "curl".
+    # Swap curl-minimal with curl.
+    if is_package_installed curl-minimal; then
+        sudo dnf swap -y curl-minimal curl
+    fi
 elif [[ $DISTRO == "openEuler-22.03" ]]; then
     # There are some problem in openEuler. We should fix it first. Some required
     # package/action runs before fixup script. So we can't fix there.