diff --git a/Gopkg.lock b/Gopkg.lock
index f93e15b..55aba41 100644
--- a/Gopkg.lock
+++ b/Gopkg.lock
@@ -18,7 +18,6 @@
   revision = "347cf4a86c1cb8d262994d8ef5924d4576c5b331"
 
 [[projects]]
-  branch = "master"
   digest = "1:8ad4e062258dc3d193cead76f44460cfbfc19c309e1ed9f8935b8eb67d2ce077"
   name = "github.com/passw0rd/phe-go"
   packages = [
@@ -27,6 +26,7 @@
   ]
   pruneopts = "UT"
   revision = "03eb765a068b23af843a9c29592e4b31f8d9161f"
+  version = "v1.0.0"
 
 [[projects]]
   digest = "1:cf31692c14422fa27c83a05292eb5cbe0fb2775972e8f1f8446a71549bd8980b"
diff --git a/Gopkg.toml b/Gopkg.toml
index dbc7a0c..2650351 100644
--- a/Gopkg.toml
+++ b/Gopkg.toml
@@ -1,18 +1,45 @@
+# 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]]
   branch = "master"
   name = "github.com/golang/protobuf"
 
 [[constraint]]
-  branch = "master"
   name = "github.com/passw0rd/phe-go"
+  version = "1.0.0"
 
 [[constraint]]
   name = "github.com/pkg/errors"
-  version = "0.8.0"
+  version = "0.8.1"
 
 [[constraint]]
   name = "github.com/stretchr/testify"
-  version = "1.2.2"
+  version = "1.3.0"
 
 [prune]
   go-tests = true