diff --git a/R/DESCRIPTION b/R/DESCRIPTION
index b7db582..f6ca5d1 100644
--- a/R/DESCRIPTION
+++ b/R/DESCRIPTION
@@ -17,7 +17,7 @@ Depends:
     Rcpp (>= 0.12.0)
 Imports:
     dplyr (>= 0.5.0),
-    dygraphs,
+    dygraphs (>= 1.1.1.4),
     extraDistr,
     ggplot2,
     grid,