diff --git a/openmetadata-spec/src/main/resources/elasticsearch/en/classification_index_mapping.json b/openmetadata-spec/src/main/resources/elasticsearch/en/classification_index_mapping.json
index 52ae14e3ae7..d49192935e1 100644
--- a/openmetadata-spec/src/main/resources/elasticsearch/en/classification_index_mapping.json
+++ b/openmetadata-spec/src/main/resources/elasticsearch/en/classification_index_mapping.json
@@ -136,7 +136,8 @@
         "type": "float"
       },
       "updatedAt": {
-        "type": "text"
+        "type": "date",
+        "format": "epoch_second"
       },
       "updatedBy": {
         "type": "text"
diff --git a/openmetadata-spec/src/main/resources/elasticsearch/jp/classification_index_mapping.json b/openmetadata-spec/src/main/resources/elasticsearch/jp/classification_index_mapping.json
index e32fa9184ef..a090e9aa58f 100644
--- a/openmetadata-spec/src/main/resources/elasticsearch/jp/classification_index_mapping.json
+++ b/openmetadata-spec/src/main/resources/elasticsearch/jp/classification_index_mapping.json
@@ -126,7 +126,8 @@
         "type": "float"
       },
       "updatedAt": {
-        "type": "text"
+        "type": "date",
+        "format": "epoch_second"
       },
       "updatedBy": {
         "type": "text"
diff --git a/openmetadata-spec/src/main/resources/elasticsearch/zh/classification_index_mapping.json b/openmetadata-spec/src/main/resources/elasticsearch/zh/classification_index_mapping.json
index d05a79ee1cd..1a709695ba8 100644
--- a/openmetadata-spec/src/main/resources/elasticsearch/zh/classification_index_mapping.json
+++ b/openmetadata-spec/src/main/resources/elasticsearch/zh/classification_index_mapping.json
@@ -126,7 +126,8 @@
         "type": "float"
       },
       "updatedAt": {
-        "type": "text"
+        "type": "date",
+        "format": "epoch_second"
       },
       "updatedBy": {
         "type": "text"