diff --git a/Gopkg.lock b/Gopkg.lock
index 1aa417f..1498d74 100644
--- a/Gopkg.lock
+++ b/Gopkg.lock
@@ -4,12 +4,24 @@
 [[projects]]
   name = "github.com/json-iterator/go"
   packages = ["."]
-  revision = "28452fcdec4e44348d2af0d91d1e9e38da3a9e0a"
-  version = "1.0.5"
+  revision = "ca39e5af3ece67bbcda3d0f4f56a8e24d9f2dad4"
+  version = "1.1.3"
+
+[[projects]]
+  name = "github.com/modern-go/concurrent"
+  packages = ["."]
+  revision = "bacd9c7ef1dd9b15be4a9909b8ac7a4e313eec94"
+  version = "1.0.3"
+
+[[projects]]
+  name = "github.com/modern-go/reflect2"
+  packages = ["."]
+  revision = "1df9eeb2bb81f327b96228865c5687bc2194af3f"
+  version = "1.0.0"
 
 [solve-meta]
   analyzer-name = "dep"
   analyzer-version = 1
-  inputs-digest = "15ed64bba2508f9a4b924e6f1078f2185802778bb17ba8c3b5678e0c9cd3ea8c"
+  inputs-digest = "7dfa66745c8033710e5c7092896167528387f2cd895e43e4e4e103123feaded0"
   solver-name = "gps-cdcl"
   solver-version = 1
diff --git a/Gopkg.toml b/Gopkg.toml
index 1cdedd8..5a96ac8 100644
--- a/Gopkg.toml
+++ b/Gopkg.toml
@@ -1,33 +1,6 @@
-# Gopkg.toml example
-#
-# Refer to https://github.com/golang/dep/blob/master/docs/Gopkg.toml.md
-# for detailed Gopkg.toml documentation.
-#
-# required = ["github.com/user/thing/cmd/thing"]
-# ignored = ["github.com/user/project/pkgX", "bitbucket.org/user/project/pkgA/pkgY"]
-#
-# [[constraint]]
-#   name = "github.com/user/project"
-#   version = "1.0.0"
-#
-# [[constraint]]
-#   name = "github.com/user/project2"
-#   branch = "dev"
-#   source = "github.com/myfork/project2"
-#
-# [[override]]
-#   name = "github.com/x/y"
-#   version = "2.4.0"
-#
-# [prune]
-#   non-go = false
-#   go-tests = true
-#   unused-packages = true
-
-
 [[constraint]]
   name = "github.com/json-iterator/go"
-  version = "1.0.5"
+  version = "1.1.3"
 
 [prune]
   go-tests = true