diff --git a/grammar/task.pegjs b/grammar/task.pegjs
index 7e079b8..251444c 100644
--- a/grammar/task.pegjs
+++ b/grammar/task.pegjs
@@ -114,7 +114,7 @@ dateLiteral = year:([0-9]|4|) "-" month:([0-9]|1..2|) "-" day:([0-9]|1..2|) {
 
 /**************************************************************************************************************************************/
 
-dependency = type:dependencyIcon _ deps:([a-zA-Z0-9]+)|..,(_ "," _)| {
+dependency = type:dependencyIcon _ deps:([a-zA-Z0-9-]+)|..,(_ "," _)| {
   return {
     feature: "dependency",
     type,