diff --git a/conf/es-mappings/02_annotation_history.json b/conf/es-mappings/02_annotation_history.json
index 62285af48..54c7c7400 100644
--- a/conf/es-mappings/02_annotation_history.json
+++ b/conf/es-mappings/02_annotation_history.json
@@ -1,5 +1,6 @@
 {
   "annotation_history": {
+    "dynamic": "false",
     "properties": {
       "annotation_id": { "type": "string", "index": "not_analyzed" },
       "annotates": {