diff --git a/.travis.yml b/.travis.yml
index 1d46e9a..8bfc4f3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,18 +5,14 @@ git:
 env:
   - GO111MODULE=on
   - GO111MODULE=off
-go: [ 1.11.x, 1.12.x, 1.13.x ]
-os: [ linux, osx ]
+go: [1.11.x, 1.12.x, 1.13.x]
+os: [linux, osx]
 matrix:
   exclude:
-    - go: 1.12.x
-      env: GO111MODULE=off
-    - go: 1.11.x
-      os: osx
+    - go: 1.13.x
+      env: GO111MODULE=off ## Modules are the default now.
 install:
   - ./travis/install.sh
-  - if [[ "$GO111MODULE" ==  "on" ]]; then go mod download; fi
-  - if [[ "$GO111MODULE" == "off" ]]; then go get github.com/stretchr/testify/assert golang.org/x/sys/unix github.com/konsorten/go-windows-terminal-sequences; fi
 script:
   - ./travis/cross_build.sh
   - export GOMAXPROCS=4
diff --git a/go.mod b/go.mod
index 12fdf98..9ea6e84 100644
--- a/go.mod
+++ b/go.mod
@@ -4,7 +4,8 @@ require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/konsorten/go-windows-terminal-sequences v1.0.1
 	github.com/pmezard/go-difflib v1.0.0 // indirect
-	github.com/stretchr/objx v0.1.1 // indirect
 	github.com/stretchr/testify v1.2.2
 	golang.org/x/sys v0.0.0-20190422165155-953cdadca894
 )
+
+go 1.13
diff --git a/go.sum b/go.sum
index 596c318..95a3f07 100644
--- a/go.sum
+++ b/go.sum
@@ -1,16 +1,10 @@
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/konsorten/go-windows-terminal-sequences v0.0.0-20180402223658-b729f2633dfe h1:CHRGQ8V7OlCYtwaKPJi3iA7J+YdNKdo8j7nG5IgDhjs=
-github.com/konsorten/go-windows-terminal-sequences v0.0.0-20180402223658-b729f2633dfe/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1 h1:mweAR1A6xJ3oS2pRaGiHgQ4OO8tzTaLawm8vnODuwDk=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/stretchr/objx v0.1.1 h1:2vfRuCMp5sSVIDSqO8oNnWJq7mPa6KVP3iPIwFBuy8A=
-github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
-golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33 h1:I6FyU15t786LL7oL/hn43zqTuEGr4PN7F4XJ1p4E3Y8=
-golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190422165155-953cdadca894 h1:Cz4ceDQGXuKRnVBDTS23GTn/pU5OE2C0WrNTOYK1Uuc=
 golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
diff --git a/travis/cross_build.sh b/travis/cross_build.sh
index 545d8c3..5254435 100755
--- a/travis/cross_build.sh
+++ b/travis/cross_build.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
 
-if [[ "$TRAVIS_GO_VERSION" =~ ^1.\12\. ]] && [[ "$TRAVIS_OS_NAME" == "linux" ]]; then
-    /tmp/gox/gox -build-lib -all
+if [[ "$TRAVIS_GO_VERSION" =~ ^1\.13\. ]] && [[ "$TRAVIS_OS_NAME" == "linux" ]] && [[ "$GO111MODULE" == "on" ]]; then
+    $(go env GOPATH)/bin/gox -build-lib
 fi
diff --git a/travis/install.sh b/travis/install.sh
index 07f4532..127ac8b 100755
--- a/travis/install.sh
+++ b/travis/install.sh
@@ -2,10 +2,16 @@
 
 set -e
 
-if [[ "$TRAVIS_GO_VERSION" =~ ^1.\12\. ]] && [[ "$TRAVIS_OS_NAME" == "linux" ]]; then
-    git clone https://github.com/dgsb/gox.git /tmp/gox
-    pushd /tmp/gox
-    git checkout new_master
-    go build ./
-    popd
+# Only do this for go1.12 when modules are on so that it doesn't need to be done when modules are off as well.
+if [[ "$TRAVIS_GO_VERSION" =~ ^1\.13\. ]] && [[ "$TRAVIS_OS_NAME" == "linux" ]] && [[ "$GO111MODULE" == "on" ]]; then
+    GO111MODULE=off go get github.com/dgsb/gox
+fi
+
+if [[ "$GO111MODULE" ==  "on" ]]; then
+    go mod download
+fi
+
+if [[ "$GO111MODULE" == "off" ]]; then
+    # Should contain all regular (not indirect) modules from go.mod
+    go get github.com/stretchr/testify golang.org/x/sys/unix github.com/konsorten/go-windows-terminal-sequences
 fi