diff --git a/specs/openapi.json b/specs/openapi.json
index 42e6356..28bd7a6 100644
--- a/specs/openapi.json
+++ b/specs/openapi.json
@@ -26355,14 +26355,14 @@
         "type": "object",
         "properties": {
           "duration_seconds": {
-            "type": "integer",
+            "type": [
+              "integer",
+              "null"
+            ],
             "minimum": 0,
             "maximum": 2419200
           }
-        },
-        "required": [
-          "duration_seconds"
-        ]
+        }
       },
       "UserCommunicationDisabledActionMetadataResponse": {
         "type": "object",
diff --git a/specs/openapi_preview.json b/specs/openapi_preview.json
index 967502d..7907083 100644
--- a/specs/openapi_preview.json
+++ b/specs/openapi_preview.json
@@ -26792,14 +26792,14 @@
         "type": "object",
         "properties": {
           "duration_seconds": {
-            "type": "integer",
+            "type": [
+              "integer",
+              "null"
+            ],
             "minimum": 0,
             "maximum": 2419200
           }
-        },
-        "required": [
-          "duration_seconds"
-        ]
+        }
       },
       "UserCommunicationDisabledActionMetadataResponse": {
         "type": "object",