diff --git a/spec/02-integration/18-hybrid_rpc/10-validate_deltas_spec.lua b/spec/02-integration/18-hybrid_rpc/10-validate_deltas_spec.lua
index a92baec2aa1..9b186a761fd 100644
--- a/spec/02-integration/18-hybrid_rpc/10-validate_deltas_spec.lua
+++ b/spec/02-integration/18-hybrid_rpc/10-validate_deltas_spec.lua
@@ -54,7 +54,7 @@ for _, strategy in helpers.each_strategy() do
         assert.logfile(name).has.line(
           "[error]", true, 10)
         assert.logfile(name).has.line(
-          "unable to create worker mutex and sync", true, 5)
+          "unable to create worker mutex and sync", true, 10)
         assert.logfile(name).has.line(
           "'name': required field missing", true, 10)
 
diff --git a/spec/fixtures/custom_plugins/kong/plugins/rpc-notify-new-version-test/handler.lua b/spec/fixtures/custom_plugins/kong/plugins/rpc-notify-new-version-test/handler.lua
index 1862de167ff..7d6d7952804 100644
--- a/spec/fixtures/custom_plugins/kong/plugins/rpc-notify-new-version-test/handler.lua
+++ b/spec/fixtures/custom_plugins/kong/plugins/rpc-notify-new-version-test/handler.lua
@@ -23,10 +23,6 @@ function RpcSyncV2NotifyNewVersioinTestHandler:init_worker()
         entity = {
           id = fake_uuid,
           name = "default",
-          -- It must contain feild "config" and "meta", otherwise the deltas
-          -- validation will fail with the error "required field missing".
-          config = {},
-          meta = {},
         },
         type = "workspaces",
         version = latest_version,