diff --git a/Gopkg.lock b/Gopkg.lock
new file mode 100644
index 0000000..35b4194
--- /dev/null
+++ b/Gopkg.lock
@@ -0,0 +1,279 @@
+# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
+
+
+[[projects]]
+  digest = "1:9f3b30d9f8e0d7040f729b82dcbc8f0dead820a133b3147ce355fc451f32d761"
+  name = "github.com/BurntSushi/toml"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "3012a1dbe2e4bd1391d42b32f0577cb7bbc7f005"
+  version = "v0.3.1"
+
+[[projects]]
+  digest = "1:d6afaeed1502aa28e80a4ed0981d570ad91b2579193404256ce672ed0a609e0d"
+  name = "github.com/beorn7/perks"
+  packages = ["quantile"]
+  pruneopts = "UT"
+  revision = "4b2b341e8d7715fae06375aa633dbb6e91b3fb46"
+  version = "v1.0.0"
+
+[[projects]]
+  digest = "1:bbc4aacabe6880bdbce849c64cb061b7eddf39f132af4ea2853ddd32f85fbec3"
+  name = "github.com/fatih/camelcase"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "44e46d280b43ec1531bb25252440e34f1b800b65"
+  version = "v1.0.0"
+
+[[projects]]
+  digest = "1:af43bdaaf86655a2343f113e9b293bbc16b12099eaeb223982bbe4d4c22ba14d"
+  name = "github.com/fatih/structs"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "4966fc68f5b7593aafa6cbbba2d65ec6e1416047"
+  version = "v1.1.0"
+
+[[projects]]
+  branch = "master"
+  digest = "1:2d5e64c599a187b93bc001ca494a57622574f94c91133ec7fde1794bd284725b"
+  name = "github.com/fortnoxab/fnxlogrus"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "cbb7cf837eba37c044e7db6630ff630b4f7ec2c0"
+
+[[projects]]
+  branch = "master"
+  digest = "1:d44fe32d5a2d140519a35898438ccc3f3ae52e86e6e6ffd26a45e4af3032c021"
+  name = "github.com/fortnoxab/ginprometheus"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "3af8cb10d30d233a537050facf670f2635927866"
+
+[[projects]]
+  branch = "master"
+  digest = "1:a4b5a6b32f33323c7850fae4ec085a0fbac3be93c057b6b8cef5bcabe24645ac"
+  name = "github.com/gin-contrib/sse"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "5545eab6dad3bbbd6c5ae9186383c2a9d23c0dae"
+
+[[projects]]
+  branch = "master"
+  digest = "1:c0536a6596ca73ca99d8df0984fae53b68336039ffed3bb03eba67c0b92f7977"
+  name = "github.com/gin-gonic/gin"
+  packages = [
+    ".",
+    "binding",
+    "internal/json",
+    "render",
+  ]
+  pruneopts = "UT"
+  revision = "35e33d3638f9b5a1246dd9c72a99740f5ad4b43b"
+
+[[projects]]
+  digest = "1:318f1c959a8a740366fce4b1e1eb2fd914036b4af58fbd0a003349b305f118ad"
+  name = "github.com/golang/protobuf"
+  packages = ["proto"]
+  pruneopts = "UT"
+  revision = "b5d812f8a3706043e23a9cd5babf2e5423744d30"
+  version = "v1.3.1"
+
+[[projects]]
+  digest = "1:7b5c6e2eeaa9ae5907c391a91c132abfd5c9e8a784a341b5625e750c67e6825d"
+  name = "github.com/gorilla/websocket"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "66b9c49e59c6c48f0ffce28c2d8b8a5678502c6d"
+  version = "v1.4.0"
+
+[[projects]]
+  branch = "master"
+  digest = "1:4f0d34160310000cbc475b9c775bcb60b575d46dc81ee69ab64cd479c391f278"
+  name = "github.com/jonaz/ginlogrus"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "b11bca512d184f671fc780c5a09a02c34e22b259"
+
+[[projects]]
+  branch = "master"
+  digest = "1:68c201688fb1d983566c3b71741be0b03848a657d8f3101660710fc75452ec77"
+  name = "github.com/jonaz/gograce"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "582d7afa93c309f589d606e33e3be5a72b596d3b"
+
+[[projects]]
+  digest = "1:f5a2051c55d05548d2d4fd23d244027b59fbd943217df8aa3b5e170ac2fd6e1b"
+  name = "github.com/json-iterator/go"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "0ff49de124c6f76f8494e194af75bde0f1a49a29"
+  version = "v1.1.6"
+
+[[projects]]
+  branch = "master"
+  digest = "1:26ee455faa224e7031355a0b51ce60c489f0fb4aa2cc96b42a622c320f0c0049"
+  name = "github.com/koding/multiconfig"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "69c27309b2d751c576b59ea9c3726597c2375da3"
+
+[[projects]]
+  digest = "1:31e761d97c76151dde79e9d28964a812c46efc5baee4085b86f68f0c654450de"
+  name = "github.com/konsorten/go-windows-terminal-sequences"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "f55edac94c9bbba5d6182a4be46d86a2c9b5b50e"
+  version = "v1.0.2"
+
+[[projects]]
+  digest = "1:9b90c7639a41697f3d4ad12d7d67dfacc9a7a4a6e0bbfae4fc72d0da57c28871"
+  name = "github.com/mattn/go-isatty"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "1311e847b0cb909da63b5fecfb5370aa66236465"
+  version = "v0.0.8"
+
+[[projects]]
+  digest = "1:ff5ebae34cfbf047d505ee150de27e60570e8c394b3b8fdbb720ff6ac71985fc"
+  name = "github.com/matttproud/golang_protobuf_extensions"
+  packages = ["pbutil"]
+  pruneopts = "UT"
+  revision = "c12348ce28de40eed0136aa2b644d0ee0650e56c"
+  version = "v1.0.1"
+
+[[projects]]
+  digest = "1:33422d238f147d247752996a26574ac48dcf472976eda7f5134015f06bf16563"
+  name = "github.com/modern-go/concurrent"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "bacd9c7ef1dd9b15be4a9909b8ac7a4e313eec94"
+  version = "1.0.3"
+
+[[projects]]
+  digest = "1:e32bdbdb7c377a07a9a46378290059822efdce5c8d96fe71940d87cb4f918855"
+  name = "github.com/modern-go/reflect2"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "4b7aa43c6742a2c18fdef89dd197aaae7dac7ccd"
+  version = "1.0.1"
+
+[[projects]]
+  branch = "master"
+  digest = "1:586c8d8c5717df6ef7f74bbf52c8c10104374c76e8900eeebb7cc1526a1c796d"
+  name = "github.com/nlopes/slack"
+  packages = [
+    ".",
+    "internal/errorsx",
+    "internal/timex",
+    "slackutilsx",
+  ]
+  pruneopts = "UT"
+  revision = "e2954b1409b0228b16a1ac3515a036a3f2f4aac1"
+
+[[projects]]
+  digest = "1:cf31692c14422fa27c83a05292eb5cbe0fb2775972e8f1f8446a71549bd8980b"
+  name = "github.com/pkg/errors"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "ba968bfe8b2f7e042a574c888954fccecfa385b4"
+  version = "v0.8.1"
+
+[[projects]]
+  digest = "1:0de31727c88e9f4a4ae70c28b6caa27f39b25788daf2dc4f7406013421228144"
+  name = "github.com/prometheus/client_golang"
+  packages = [
+    "prometheus",
+    "prometheus/internal",
+    "prometheus/promhttp",
+  ]
+  pruneopts = "UT"
+  revision = "50c4339db732beb2165735d2cde0bff78eb3c5a5"
+  version = "v0.9.3"
+
+[[projects]]
+  branch = "master"
+  digest = "1:2d5cd61daa5565187e1d96bae64dbbc6080dacf741448e9629c64fd93203b0d4"
+  name = "github.com/prometheus/client_model"
+  packages = ["go"]
+  pruneopts = "UT"
+  revision = "fd36f4220a901265f90734c3183c5f0c91daa0b8"
+
+[[projects]]
+  digest = "1:8dcedf2e8f06c7f94e48267dea0bc0be261fa97b377f3ae3e87843a92a549481"
+  name = "github.com/prometheus/common"
+  packages = [
+    "expfmt",
+    "internal/bitbucket.org/ww/goautoneg",
+    "model",
+  ]
+  pruneopts = "UT"
+  revision = "17f5ca1748182ddf24fc33a5a7caaaf790a52fcc"
+  version = "v0.4.1"
+
+[[projects]]
+  branch = "master"
+  digest = "1:77b841555ca2ce5a45d7ba8b3eea5bd6e2e50c139d979b9b10f57a30fbd1132c"
+  name = "github.com/prometheus/procfs"
+  packages = [
+    ".",
+    "internal/fs",
+  ]
+  pruneopts = "UT"
+  revision = "a7aeb8df3389edaf53efcc319ad0063cb27c3960"
+
+[[projects]]
+  branch = "master"
+  digest = "1:9ffd8274c90a47cb2bdf4f469722a95027ee0dce146571d86211f08f7d8e2547"
+  name = "github.com/sirupsen/logrus"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "2a22dbedbad1fd454910cd1f44f210ef90c28464"
+
+[[projects]]
+  digest = "1:d0072748c62defde1ad99dde77f6ffce492a0e5aea9204077e497c7edfb86653"
+  name = "github.com/ugorji/go"
+  packages = ["codec"]
+  pruneopts = "UT"
+  revision = "2adff0894ba3bc2eeb9f9aea45fefd49802e1a13"
+  version = "v1.1.4"
+
+[[projects]]
+  branch = "master"
+  digest = "1:9ca267f99487ef450fff0c2a49eaf0788d9ff3562bbaeff19f564d380f84bc6d"
+  name = "golang.org/x/sys"
+  packages = ["unix"]
+  pruneopts = "UT"
+  revision = "791d8a0f4d093bd8fe272dea2cd28991154796fb"
+
+[[projects]]
+  digest = "1:cbc72c4c4886a918d6ab4b95e347ffe259846260f99ebdd8a198c2331cf2b2e9"
+  name = "gopkg.in/go-playground/validator.v8"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "5f1438d3fca68893a817e4a66806cea46a9e4ebf"
+  version = "v8.18.2"
+
+[[projects]]
+  digest = "1:4d2e5a73dc1500038e504a8d78b986630e3626dc027bc030ba5c75da257cdb96"
+  name = "gopkg.in/yaml.v2"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "51d6538a90f86fe93ac480b35f37b2be17fef232"
+  version = "v2.2.2"
+
+[solve-meta]
+  analyzer-name = "dep"
+  analyzer-version = 1
+  input-imports = [
+    "github.com/fortnoxab/fnxlogrus",
+    "github.com/fortnoxab/ginprometheus",
+    "github.com/gin-gonic/gin",
+    "github.com/jonaz/ginlogrus",
+    "github.com/jonaz/gograce",
+    "github.com/koding/multiconfig",
+    "github.com/nlopes/slack",
+    "github.com/sirupsen/logrus",
+  ]
+  solver-name = "gps-cdcl"
+  solver-version = 1
diff --git a/Gopkg.toml b/Gopkg.toml
index e9964c7..be682e3 100644
--- a/Gopkg.toml
+++ b/Gopkg.toml
@@ -53,10 +53,6 @@
   branch = "master"
   name = "github.com/nlopes/slack"
 
-[[constraint]]
-  name = "github.com/pkg/errors"
-  version = "0.8.0"
-
 [[constraint]]
   branch = "master"
   name = "github.com/sirupsen/logrus"