diff --git a/pkg/types/vector.go b/pkg/types/vector.go
index 19e7b674e8..071230bc74 100644
--- a/pkg/types/vector.go
+++ b/pkg/types/vector.go
@@ -220,6 +220,12 @@ func ZeroCopyDeserializeVectorFloat32(b []byte) (VectorFloat32, []byte, error) {
 
 // ParseVectorFloat32 parses a string into a vector.
 func ParseVectorFloat32(s string) (VectorFloat32, error) {
+	// issue #57143 jsoniter parse null will return as []
+	// Trim whitespace and check for null string and reject it
+	if strings.TrimSpace(s) == "null" {
+		return ZeroVectorFloat32, errors.Errorf("Invalid vector text: %s", s)
+	}
+
 	var values []float32
 	var valueError error
 	// We explicitly use a JSON float parser to reject other JSON types.
diff --git a/pkg/types/vector_test.go b/pkg/types/vector_test.go
index cb59a19608..f954fb521b 100644
--- a/pkg/types/vector_test.go
+++ b/pkg/types/vector_test.go
@@ -61,9 +61,9 @@ func TestVectorParse(t *testing.T) {
 	require.NotNil(t, err)
 	require.True(t, v.IsZeroValue())
 
-	// Note: Currently we will parse "null" into [].
+	// "null" string should return error, not empty vector
 	v, err = types.ParseVectorFloat32(`null`)
-	require.Nil(t, err)
+	require.NotNil(t, err)
 	require.True(t, v.IsZeroValue())
 
 	v, err = types.ParseVectorFloat32(`"json_str"`)