diff --git a/.travis.yml b/.travis.yml
index d717bfbe..efb68685 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,28 +5,18 @@ go:
   - 1.11
   - tip 
 
+env: GO111MODULE=on
+
 before_install:
-    - curl -L -s https://github.com/golang/dep/releases/download/v0.4.1/dep-linux-amd64 -o $GOPATH/bin/dep
-    - chmod +x $GOPATH/bin/dep
+  - go mod download
 
 install: 
-  - dep ensure
   - go get golang.org/x/lint/golint
   - go get github.com/haya14busa/goverage
 
 matrix:
-  include:
-    - go: 1.12
-      env: GO111MODULE=on
-      before_install:
-        - go mod download
-      install:
-        - go get golang.org/x/lint/golint
-        - go get github.com/haya14busa/goverage
   allow_failures:
     - go: tip
-    - go: 1.12
-      env: GO111MODULE=on
   fast_finish: true
 
 notifications:
@@ -43,4 +33,4 @@ script:
   - golint $LINT_PKGS                                              # lint - ignore failures for now
   
 after_success:
-  - bash <(curl -s https://codecov.io/bash)
\ No newline at end of file
+  - bash <(curl -s https://codecov.io/bash)
diff --git a/Gopkg.lock b/Gopkg.lock
deleted file mode 100644
index f0d4dba5..00000000
--- a/Gopkg.lock
+++ /dev/null
@@ -1,44 +0,0 @@
-# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
-
-
-[[projects]]
-  digest = "1:56c130d885a4aacae1dd9c7b71cfe39912c7ebc1ff7d2b46083c8812996dc43b"
-  name = "github.com/davecgh/go-spew"
-  packages = ["spew"]
-  pruneopts = ""
-  revision = "346938d642f2ec3594ed81d874461961cd0faa76"
-  version = "v1.1.0"
-
-[[projects]]
-  digest = "1:256484dbbcd271f9ecebc6795b2df8cad4c458dd0f5fd82a8c2fa0c29f233411"
-  name = "github.com/pmezard/go-difflib"
-  packages = ["difflib"]
-  pruneopts = ""
-  revision = "792786c7400a136282c1664665ae0a8db921c6c2"
-  version = "v1.0.0"
-
-[[projects]]
-  digest = "1:a30066593578732a356dc7e5d7f78d69184ca65aeeff5939241a3ab10559bb06"
-  name = "github.com/stretchr/testify"
-  packages = ["assert"]
-  pruneopts = ""
-  revision = "12b6f73e6084dad08a7c6e575284b177ecafbc71"
-  version = "v1.2.1"
-
-[[projects]]
-  digest = "1:e85837cb04b78f61688c6eba93ea9d14f60d611e2aaf8319999b1a60d2dafbfa"
-  name = "gopkg.in/urfave/cli.v1"
-  packages = ["."]
-  pruneopts = ""
-  revision = "cfb38830724cc34fedffe9a2a29fb54fa9169cd1"
-  version = "v1.20.0"
-
-[solve-meta]
-  analyzer-name = "dep"
-  analyzer-version = 1
-  input-imports = [
-    "github.com/stretchr/testify/assert",
-    "gopkg.in/urfave/cli.v1",
-  ]
-  solver-name = "gps-cdcl"
-  solver-version = 1
diff --git a/Gopkg.toml b/Gopkg.toml
deleted file mode 100644
index 323002ca..00000000
--- a/Gopkg.toml
+++ /dev/null
@@ -1,21 +0,0 @@
-
-# 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"
diff --git a/go.mod b/go.mod
index 76e68829..86401c1b 100644
--- a/go.mod
+++ b/go.mod
@@ -1,7 +1,5 @@
 module github.com/aws/aws-lambda-go
 
-go 1.12
-
 require (
 	github.com/davecgh/go-spew v1.1.0 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect