diff --git a/Gopkg.lock b/Gopkg.lock
index 37c70ce..3a5a73f 100644
--- a/Gopkg.lock
+++ b/Gopkg.lock
@@ -7,10 +7,10 @@ memo = "3fca8148a37ecc2869ef97f178d9835dfa168b8480674470fcc4cd3cce121ba2"
   version = "v0.2.3-rc"
 
 [[projects]]
-  branch = "master"
   name = "github.com/boltdb/bolt"
   packages = ["."]
-  revision = "e9cf4fae01b5a8ff89d0ec6b32f0d9c9f79aefdd"
+  revision = "2f1ce7a837dcb8da3ec595b1dac9d0632f0f99e8"
+  version = "v1.3.1"
 
 [[projects]]
   name = "github.com/gorilla/context"
@@ -22,22 +22,22 @@ memo = "3fca8148a37ecc2869ef97f178d9835dfa168b8480674470fcc4cd3cce121ba2"
   branch = "master"
   name = "github.com/gorilla/mux"
   packages = ["."]
-  revision = "599cba5e7b6137d46ddf58fb1765f5d928e69604"
+  revision = "24fca303ac6da784b9e8269f724ddeb0b2eea5e7"
 
 [[projects]]
+  branch = "master"
   name = "github.com/kennygrant/sanitize"
   packages = ["."]
-  revision = "6a0bfdde8629a3a3a7418a7eae45c54154692514"
-  version = "v1.2"
+  revision = "b38f6c674c896b4e27dcd769332a50700450dec9"
 
 [[projects]]
   branch = "master"
   name = "golang.org/x/net"
   packages = ["html","html/atom"]
-  revision = "da118f7b8e5954f39d0d2130ab35d4bf0e3cb344"
+  revision = "66aacef3dd8a676686c7ae3716979581e8b03c47"
 
 [[projects]]
   branch = "master"
   name = "golang.org/x/sys"
   packages = ["unix"]
-  revision = "9f30dcbe5be197894515a338a9bda9253567ea8f"
+  revision = "9aade4d3a3b7e6d876cd3823ad20ec45fc035402"
diff --git a/Gopkg.toml b/Gopkg.toml
index 36df948..d73b631 100644
--- a/Gopkg.toml
+++ b/Gopkg.toml
@@ -1,4 +1,3 @@
-
-[[dependencies]]
-  name = "github.com/acm-uiuc/arbor"
-  version = ">=0.2.3-alpha, <1.0.0"
+[[constraint]]
+    name = "github.com/acm-uiuc/arbor"
+    version = ">=0.2.3-alpha, <1.0.0"