minor changes
diff --git a/DESCRIPTION b/DESCRIPTION
index 2b700da..bfa640d 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -26,7 +26,7 @@
 Depends:
     R (>= 3.1.0)
 Imports:
-    knitr (>= 1.13),
+    knitr (>= 1.16),
     magrittr,
     stringr (>= 1.0),
     xml2,