diff --git a/packages/sdk/openapi.json b/packages/sdk/openapi.json
index afe14bb604c..5e372b6fb6b 100644
--- a/packages/sdk/openapi.json
+++ b/packages/sdk/openapi.json
@@ -548,7 +548,7 @@
             }
           }
         },
-        "description": "Upgrade opencode to the specified version or latest if not specified.",
+        "description": "Upgrade opencode to the specified version.",
         "summary": "Upgrade opencode",
         "requestBody": {
           "content": {
@@ -560,6 +560,7 @@
                     "type": "string"
                   }
                 },
+                "required": ["target"],
                 "additionalProperties": false
               }
             }