diff --git a/package.json b/package.json
index f83b7df..9120a1d 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
     {
                         "proof":              "1.x",
                         "riffle":             "0.0.19",
-                        "rimraf":             "2.4.3",
+                        "rimraf":             "2.5.1",
                         "b-tree":             "1.x",
                         "revise":             "0.0.4"
     },