diff --git a/dub.json b/dub.json
index 00c4310..2230fa5 100644
--- a/dub.json
+++ b/dub.json
@@ -6,7 +6,7 @@
 	"dependencies": {
 		"bformat": "~>3.1.3",
 		"eventy": "0.2.2",
-		"tristanable": "2.3.14"
+		"tristanable": "2.6.1"
 	},
 	"description": "Tagged network-message task engine",
 	"license": "LGPL v3",
diff --git a/dub.selections.json b/dub.selections.json
index 4cfc17f..0b1dc22 100644
--- a/dub.selections.json
+++ b/dub.selections.json
@@ -3,6 +3,6 @@
 	"versions": {
 		"bformat": "3.1.3",
 		"eventy": "0.2.2",
-		"tristanable": "2.3.14"
+		"tristanable": "2.6.1"
 	}
 }
diff --git a/source/tasky/exceptions.d b/source/tasky/exceptions.d
index 2e813d3..85dafe5 100644
--- a/source/tasky/exceptions.d
+++ b/source/tasky/exceptions.d
@@ -14,3 +14,11 @@ public abstract class TaskyException : Exception
 		super("TaskyException:"~msg);
 	}
 }
+
+public final class SubmissionException : TaskyException
+{
+	this(string msg)
+	{
+		super("SubmissionException: "~msg);
+	}
+}
\ No newline at end of file