diff --git a/cJSON.c b/cJSON.c
index 552cf46..e6df5a7 100644
--- a/cJSON.c
+++ b/cJSON.c
@@ -450,6 +450,12 @@ static void suffix_object(cJSON *prev,cJSON *item) {prev->next=item;item->prev=p
 void   cJSON_AddItemToArray(cJSON *array, cJSON *item)						{cJSON *c=array->child;if (!c) {array->child=item;} else {while (c && c->next) c=c->next; suffix_object(c,item);}}
 void   cJSON_AddItemToObject(cJSON *object,const char *string,cJSON *item)	{if (item->string) cJSON_free(item->string);item->string=cJSON_strdup(string);cJSON_AddItemToArray(object,item);}
 
+// Replace array/object items with new ones.
+void   cJSON_ReplaceItemInArray(cJSON *array,int which,cJSON *newitem)		{cJSON *c=array->child;while (c && which>0) c=c->next,which--;if (!c) return;
+	newitem->next=c->next;newitem->prev=c->prev;if (newitem->next) newitem->next->prev=newitem;
+	if (c==array->child) array->child=newitem; else newitem->prev->next=newitem;cJSON_Delete(c);}
+void   cJSON_ReplaceItemInObject(cJSON *object,const char *string,cJSON *newitem){int i=0;cJSON *c=object->child;while(c && strcasecmp(c->string,string))i++,c=c->next;if(c)cJSON_ReplaceItemInArray(object,i,newitem);}
+
 // Create basic types:
 cJSON *cJSON_CreateNull()						{cJSON *item=cJSON_New_Item();item->type=cJSON_NULL;return item;}
 cJSON *cJSON_CreateTrue()						{cJSON *item=cJSON_New_Item();item->type=cJSON_True;return item;}
diff --git a/cJSON.h b/cJSON.h
index e760be2..4cf1e15 100644
--- a/cJSON.h
+++ b/cJSON.h
@@ -73,7 +73,7 @@ extern int	  cJSON_GetArraySize(cJSON *array);
 extern cJSON *cJSON_GetArrayItem(cJSON *array,int item);
 // Get item "string" from object. Case insensitive.
 extern cJSON *cJSON_GetObjectItem(cJSON *object,const char *string);
-
+	
 // These calls create a cJSON item of the appropriate type.
 extern cJSON *cJSON_CreateNull();
 extern cJSON *cJSON_CreateTrue();
@@ -90,8 +90,12 @@ extern cJSON *cJSON_CreateDoubleArray(double *numbers,int count);
 extern cJSON *cJSON_CreateStringArray(const char **strings,int count);
 
 // Append item to the specified array/object.
-extern void   cJSON_AddItemToArray(cJSON *array, cJSON *item);
-extern void	  cJSON_AddItemToObject(cJSON *object,const char *string,cJSON *item);
+extern void cJSON_AddItemToArray(cJSON *array, cJSON *item);
+extern void	cJSON_AddItemToObject(cJSON *object,const char *string,cJSON *item);
+
+// Update array items.
+extern void cJSON_ReplaceItemInArray(cJSON *array,int which,cJSON *newitem);
+extern void cJSON_ReplaceItemInObject(cJSON *object,const char *string,cJSON *newitem);
 
 #define cJSON_AddNullToObject(object,name)	cJSON_AddItemToObject(object, name, cJSON_CreateNull())
 #define cJSON_AddTrueToObject(object,name)	cJSON_AddItemToObject(object, name, cJSON_CreateTrue())