ensure speed improvements take effect

lorenzwalthert · lorenzwalthert · commit 6ea9c7799ad9 · 2018-02-24T23:20:35.000+01:00
diff --git a/DESCRIPTION b/DESCRIPTION
@@ -14,7 +14,7 @@ Imports:
     rematch2,
     rlang,
     rprojroot,
-    tibble,
+    tibble (>= 1.4.2),
     withr
 Suggests:
     data.tree,
