diff --git a/examples/events/1/end-unmerge-hierarchical.json b/examples/events/1/end-unmerge-hierarchical.json
deleted file mode 100644
index 3921e758..00000000
--- a/examples/events/1/end-unmerge-hierarchical.json
+++ /dev/null
@@ -1,12 +0,0 @@
-[
-  2,
-  "end_unmerge_hierarchical",
-  {
-    "project_id": 123,
-    "previous_group_id": 1,
-    "new_group_id": 2,
-    "hierarchical_hash": "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
-    "primary_hash": "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb",
-    "datetime": "2023-03-08T16:14:18.591918Z"
-  }
-]
diff --git a/schemas/events.v1.schema.json b/schemas/events.v1.schema.json
index 08582555..ad6528dd 100644
--- a/schemas/events.v1.schema.json
+++ b/schemas/events.v1.schema.json
@@ -8,12 +8,10 @@
     { "$ref": "#/definitions/StartDeleteGroupsMessage" },
     { "$ref": "#/definitions/StartMergeMessage" },
     { "$ref": "#/definitions/StartUnmergeMessage" },
-    { "$ref": "#/definitions/StartUnmergeHierarchicalMessage" },
     { "$ref": "#/definitions/StartDeleteTagMessage" },
     { "$ref": "#/definitions/EndDeleteGroupsMessage" },
     { "$ref": "#/definitions/EndMergeMessage" },
     { "$ref": "#/definitions/EndUnmergeMessage" },
-    { "$ref": "#/definitions/EndUnmergeHierarchicalMessage" },
     { "$ref": "#/definitions/EndDeleteTagMessage" },
     { "$ref": "#/definitions/TombstoneEventsMessage" },
     { "$ref": "#/definitions/ReplaceGroupMessage" },
@@ -140,18 +138,6 @@
         }
       ]
     },
-    "StartUnmergeHierarchicalMessage": {
-      "type": "array",
-      "items": [
-        { "const": 2, "type": "integer" },
-        { "const": "start_unmerge_hierarchical" },
-        {
-          "type": "object",
-          "properties": { "project_id": { "type": "integer", "minimum": 0 } },
-          "required": ["project_id"]
-        }
-      ]
-    },
     "StartDeleteTagMessage": {
       "type": "array",
       "items": [
@@ -196,34 +182,6 @@
         }
       ]
     },
-    "EndUnmergeHierarchicalMessage": {
-      "type": "array",
-      "items": [
-        { "const": 2, "type": "integer" },
-        { "const": "end_unmerge_hierarchical" },
-        {
-          "type": "object",
-          "title": "end_unmerge_hierarchical_message_body",
-          "properties": {
-            "project_id": { "type": "integer", "minimum": 0 },
-            "previous_group_id": { "type": "integer" },
-            "new_group_id": { "type": "integer" },
-            "primary_hash": { "type": "string" },
-            "hierarchical_hash": { "type": "string" },
-            "datetime": { "$ref": "#/definitions/SnubaDatetime" }
-          },
-          "additionalProperties": true,
-          "required": [
-            "project_id",
-            "previous_group_id",
-            "new_group_id",
-            "primary_hash",
-            "hierarchical_hash",
-            "datetime"
-          ]
-        }
-      ]
-    },
     "EndDeleteTagMessage": {
       "type": "array",
       "items": [
@@ -363,13 +321,6 @@
             }
           ]
         },
-        "hierarchical_hashes": {
-          "default": [],
-          "type": "array",
-          "items": {
-            "type": "string"
-          }
-        },
         "location": {
           "default": null,
           "type": ["string", "null"]
diff --git a/schemas/generic-events.v1.schema.json b/schemas/generic-events.v1.schema.json
index 97b3f184..13a10fc3 100644
--- a/schemas/generic-events.v1.schema.json
+++ b/schemas/generic-events.v1.schema.json
@@ -378,12 +378,6 @@
         "version": {
           "description": " Version",
           "type": ["string", "null"]
-        },
-        "hierarchical_hashes": {
-          "type": "array",
-          "items": {
-            "type": "string"
-          }
         }
       }
     },