diff --git a/requirements.txt b/requirements.txt
index dbabbe5f7..9dc90468d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -22,5 +22,5 @@ reflink==0.2.0
 requests>=2.18.4
 wheel>=0.31.1
 futures>=3.2.0; python_version == "2.7"
-grandalf==0.55555 
+grandalf==0.6
 asciicanvas==0.0.3