diff --git a/schemas/commodity-v3.0.json b/schemas/commodity-v3.0.json
index 9b8971d..f8ea96a 100644
--- a/schemas/commodity-v3.0.json
+++ b/schemas/commodity-v3.0.json
@@ -32,7 +32,7 @@
         "message": {
             "type"                  : "object",
             "additionalProperties"  : false,
-            "required"              : [ "systemName", "stationName", "timestamp", "commodities" ],
+            "required"              : [ "systemName", "stationName", "marketId", "timestamp", "commodities" ],
             "properties"            : {
                 "systemName": {
                     "type"      : "string",
@@ -43,7 +43,11 @@
                     "minLength" : 1
                 },                
                 "marketId": {
-                    "type"          : "number"
+                    "type"      : "number"
+                },
+                "horizons": {
+                    "type"      : "boolean",
+                    "description" : "Whether the sending Cmdr has a Horizons pass."
                 },
                 "timestamp": {
                     "type"      : "string",
diff --git a/schemas/outfitting-v2.0.json b/schemas/outfitting-v2.0.json
index 8ca5951..414d190 100644
--- a/schemas/outfitting-v2.0.json
+++ b/schemas/outfitting-v2.0.json
@@ -32,7 +32,7 @@
         "message": {
             "type"                  : "object",
             "additionalProperties"  : false,
-            "required"              : [ "systemName", "stationName", "timestamp", "modules" ],
+            "required"              : [ "systemName", "stationName", "marketId", "timestamp", "modules" ],
             "properties"            : {
                 "systemName": {
                     "type"      : "string",
@@ -43,7 +43,11 @@
                     "minLength" : 1
                 },                
                 "marketId": {
-                    "type"          : "number"
+                    "type"      : "number"
+                },
+                "horizons": {
+                    "type"      : "boolean",
+                    "description" : "Whether the sending Cmdr has a Horizons pass."
                 },
                 "timestamp": {
                     "type"      : "string",
diff --git a/schemas/shipyard-v2.0.json b/schemas/shipyard-v2.0.json
index db88555..8f2e05a 100644
--- a/schemas/shipyard-v2.0.json
+++ b/schemas/shipyard-v2.0.json
@@ -32,7 +32,7 @@
         "message": {
             "type"                  : "object",
             "additionalProperties"  : false,
-            "required"              : [ "systemName", "stationName", "timestamp", "ships" ],
+            "required"              : [ "systemName", "stationName", "marketId", "timestamp", "ships" ],
             "properties"            : {
                 "systemName": {
                     "type"      : "string",
@@ -45,6 +45,10 @@
                 "marketId": {
                     "type"          : "number"
                 },
+                "horizons": {
+                    "type"      : "boolean",
+                    "description" : "Whether the sending Cmdr has a Horizons pass."
+                },
                 "timestamp": {
                     "type"      : "string",
                     "format"    : "date-time"