diff --git a/lib/eventstore.js b/lib/eventstore.js
index 3539e1cd..20e5d678 100644
--- a/lib/eventstore.js
+++ b/lib/eventstore.js
@@ -439,6 +439,16 @@ _.extend(Eventstore.prototype, {
 
     obj.streamId = obj.aggregateId;
 
+    if (obj.revision) {
+      if (typeof (obj.revision) === 'string') {
+        const castedRevision = parseFloat(obj.revision);
+
+        if (castedRevision && castedRevision.toString() === obj.revision) { // Determines if the revision was parsed correctly, for the cases where user using custom typed revisions that's not in valid float format like: obj.revision = '1,2,3'
+          obj.revision = castedRevision;
+        }
+      }
+    }
+
     var self = this;
 
     async.waterfall([