diff --git a/Objects/dictobject.c b/Objects/dictobject.c
index 422f4b0..b6205d9 100644
--- a/Objects/dictobject.c
+++ b/Objects/dictobject.c
@@ -4159,7 +4159,7 @@
     if (result == NULL)
         return NULL;
 
-    tmp = _PyObject_CallMethodIdObjArgs(result, &PyId_difference_update, other, NULL);
+    tmp = _PyObject_CallMethodIdOneArg(result, &PyId_difference_update, other);
     if (tmp == NULL) {
         Py_DECREF(result);
         return NULL;
@@ -4179,7 +4179,7 @@
     if (result == NULL)
         return NULL;
 
-    tmp = _PyObject_CallMethodIdObjArgs(result, &PyId_intersection_update, other, NULL);
+    tmp = _PyObject_CallMethodIdOneArg(result, &PyId_intersection_update, other);
     if (tmp == NULL) {
         Py_DECREF(result);
         return NULL;
@@ -4199,7 +4199,7 @@
     if (result == NULL)
         return NULL;
 
-    tmp = _PyObject_CallMethodIdObjArgs(result, &PyId_update, other, NULL);
+    tmp = _PyObject_CallMethodIdOneArg(result, &PyId_update, other);
     if (tmp == NULL) {
         Py_DECREF(result);
         return NULL;
@@ -4219,7 +4219,7 @@
     if (result == NULL)
         return NULL;
 
-    tmp = _PyObject_CallMethodIdObjArgs(result, &PyId_symmetric_difference_update, other, NULL);
+    tmp = _PyObject_CallMethodIdOneArg(result, &PyId_symmetric_difference_update, other);
     if (tmp == NULL) {
         Py_DECREF(result);
         return NULL;