diff --git a/R-package/DESCRIPTION b/R-package/DESCRIPTION
index 3d5319411..e1383d3ad 100644
--- a/R-package/DESCRIPTION
+++ b/R-package/DESCRIPTION
@@ -21,7 +21,7 @@ VignetteBuilder: knitr
 Suggests:
     knitr,
     ggplot2 (>= 1.0.0),
-    DiagrammeR (>= 0.4),
+    DiagrammeR (>= 0.6),
     Ckmeans.1d.dp (>= 3.3.1),
     vcd (>= 1.3)
 Depends: