diff --git a/pkg/tasks/types.go b/pkg/tasks/types.go
index 4bf6a1b..09d4485 100644
--- a/pkg/tasks/types.go
+++ b/pkg/tasks/types.go
@@ -1,10 +1,10 @@
 package tasks
 
 type TaskDefinition struct {
-	RunID      uint              `json:"runId"`
-	TaskType   string            `json:"taskType"`
-	ResultType string            `json:"resultType"`
-	Params     map[string]string `json:"params"`
+	RunID      uint                `json:"runId"`
+	TaskType   string              `json:"taskType"`
+	ResultType string              `json:"resultType"`
+	Params     map[string][]string `json:"params"`
 }
 
 type TaskRequest struct {