diff --git a/.gitignore b/.gitignore
index f1c181e..643d992 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,3 +10,5 @@
 
 # Output of the go coverage tool, specifically when used with LiteIDE
 *.out
+
+/vendor/*
\ No newline at end of file
diff --git a/Gopkg.lock b/Gopkg.lock
new file mode 100644
index 0000000..294438e
--- /dev/null
+++ b/Gopkg.lock
@@ -0,0 +1,61 @@
+# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
+
+
+[[projects]]
+  digest = "1:8daf7b082ea28ca028b75f63db3b2c3c69df9d3535efaba496810c63f47bde9a"
+  name = "github.com/flavioltonon/go-brazil"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "dee4f344a18a742bde7104b0bf5ac9af354a684d"
+  version = "v0.8.0"
+
+[[projects]]
+  branch = "master"
+  digest = "1:f14d1b50e0075fb00177f12a96dd7addf93d1e2883c25befd17285b779549795"
+  name = "github.com/gopherjs/gopherjs"
+  packages = ["js"]
+  pruneopts = "UT"
+  revision = "3e4dfb77656c424b6d1196a4d5fed0fcf63677cc"
+
+[[projects]]
+  digest = "1:4b63210654b1f2b664f74ec434a1bb1cb442b3d75742cc064a10808d1cca6361"
+  name = "github.com/jtolds/gls"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "b4936e06046bbecbb94cae9c18127ebe510a2cb9"
+  version = "v4.20"
+
+[[projects]]
+  digest = "1:237af0cf68bac89e21af72e6cd6b64f388854895e75f82ad08c6c011e1a8286c"
+  name = "github.com/smartystreets/assertions"
+  packages = [
+    ".",
+    "internal/go-diff/diffmatchpatch",
+    "internal/go-render/render",
+    "internal/oglematchers",
+  ]
+  pruneopts = "UT"
+  revision = "f487f9de1cd36ebab28235b9373028812fb47cbd"
+  version = "1.10.1"
+
+[[projects]]
+  digest = "1:a3e081e593ee8e3b0a9af6a5dcac964c67a40c4f2034b5345b2ad78d05920728"
+  name = "github.com/smartystreets/goconvey"
+  packages = [
+    "convey",
+    "convey/gotest",
+    "convey/reporting",
+  ]
+  pruneopts = "UT"
+  revision = "9e8dc3f972df6c8fcc0375ef492c24d0bb204857"
+  version = "1.6.3"
+
+[solve-meta]
+  analyzer-name = "dep"
+  analyzer-version = 1
+  input-imports = [
+    "github.com/flavioltonon/go-brazil",
+    "github.com/smartystreets/goconvey/convey",
+  ]
+  solver-name = "gps-cdcl"
+  solver-version = 1
diff --git a/Gopkg.toml b/Gopkg.toml
new file mode 100644
index 0000000..25d565b
--- /dev/null
+++ b/Gopkg.toml
@@ -0,0 +1,38 @@
+# Gopkg.toml example
+#
+# Refer to https://golang.github.io/dep/docs/Gopkg.toml.html
+# 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/flavioltonon/go-brazil"
+  version = "0.8.0"
+
+[[constraint]]
+  name = "github.com/smartystreets/goconvey"
+  version = "1.6.3"
+
+[prune]
+  go-tests = true
+  unused-packages = true