# Can I change the system index mapping and enrich it with new fields **URL:** \ **Category:** Elasticsearch\ **Created:** [July 30, 2021, 8:55am UTC](https://discuss.elastic.co/t/can-i-change-the-system-index-mapping-and-enrich-it-with-new-fields/280057 "2021-07-30T08:55:01Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Divyank\_Mahalle](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/divyank_mahalle/32/91240_2.png) [@Divyank\_Mahalle](https://discuss.elastic.co/u/Divyank_Mahalle)\ **Post date:** [July 30, 2021, 8:55am UTC](https://discuss.elastic.co/t/can-i-change-the-system-index-mapping-and-enrich-it-with-new-fields/280057/1 "2021-07-30T08:55:01Z")
Hi, Can I change the mapping of the system index and enrich it with new fields. The current mapping of an index is "dynamic":"strict" and the index is hidden by default and its name starting with "." [System index](https://discuss.elastic.co/t/ilm-history-system-index-does-not-start-with-a-dot/239335) ---
**Author:** ![spinscale](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/spinscale/32/25011_2.png) [@spinscale](https://discuss.elastic.co/u/spinscale)\ **Post date:** [August 2, 2021, 7:28am UTC](https://discuss.elastic.co/t/can-i-change-the-system-index-mapping-and-enrich-it-with-new-fields/280057/2 "2021-08-02T07:28:45Z")
You should not fiddle or change any of those indices as they are used internally by the stack and can change anytime. Can you maybe explain what you are trying to do, so we can see if there is an easy to implement workaround? ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [August 30, 2021, 7:29am UTC](https://discuss.elastic.co/t/can-i-change-the-system-index-mapping-and-enrich-it-with-new-fields/280057/3 "2021-08-30T07:29:43Z")
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