diff --git a/core/unittest/server/utils.cpp b/core/unittest/server/utils.cpp
index 6ff73cc727c5efbce95cb43aed1ea06d1f09999f..534d53cb0c934adeffd2588adf1cd52a35b052c1 100644
--- a/core/unittest/server/utils.cpp
+++ b/core/unittest/server/utils.cpp
@@ -22,7 +22,7 @@ namespace {
 static const char* VALID_CONFIG_STR =
     "# Default values are used when you make no changes to the following parameters.\n"
     "\n"
-    "version: 0.3"
+    "version: 0.4"
     "\n"
     "server_config:\n"
     "  address: 0.0.0.0                  # milvus server ip address (IPv4)\n"