diff --git a/unity-composite/action.yaml b/unity-composite/action.yaml
index 7eab879..a0546c0 100644
--- a/unity-composite/action.yaml
+++ b/unity-composite/action.yaml
@@ -22,7 +22,7 @@ inputs:
     default: build
   cacheVolume:
     description: "Name of the volume to cache the Library folder to."
-    required: true
+    required: false
   artifactsVolume:
     description: "Name of the volume to copy the artifacts to."
     required: true