diff --git a/.travis.yml b/.travis.yml
index 4278353..3869ae0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,10 +1,7 @@
 language: go
 go:
-  - 1.7
-  - 1.8
+  - 1.x
 sudo: false
-install:
-  - go get github.com/bmizerany/assert
 notifications:
   email: false
 
diff --git a/README.md b/README.md
index 3ab856a..24b1167 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@ json2csv
 
 Converts a stream of newline separated json data to csv format.
 
-[![Build Status](https://travis-ci.org/jehiah/json2csv.png?branch=master)](https://travis-ci.org/jehiah/json2csv)
+[![Build Status](https://travis-ci.org/jehiah/json2csv.png?branch=master)](https://travis-ci.org/jehiah/json2csv) [![GitHub release](https://img.shields.io/github/release/jehiah/json2csv.svg)](https://github.com/jehiah/json2csv/releases/latest)
 
 
 Installation
diff --git a/dist.sh b/dist.sh
index 8f96d21..d24b1cb 100755
--- a/dist.sh
+++ b/dist.sh
@@ -7,7 +7,7 @@ DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 echo "working dir $DIR"
 
 echo "... running tests"
-go test|| exit 1
+go test ./... || exit 1
 
 arch=$(go env GOARCH)
 version=$(cat $DIR/version.go | grep "const VERSION" | awk '{print $NF}' | sed 's/"//g')
@@ -17,15 +17,17 @@ for os in linux darwin; do
     echo "... building v$version for $os/$arch"
     BUILD=$(mktemp -d -t json2csv)
     TARGET="json2csv-$version.$os-$arch.$goversion"
-    GOOS=$os GOARCH=$arch CGO_ENABLED=0 go build
     mkdir -p $BUILD/$TARGET
-    cp json2csv $BUILD/$TARGET/json2csv
+    GOOS=$os GOARCH=$arch CGO_ENABLED=0 go build -o $BUILD/$TARGET/json2csv
+
     pushd $BUILD >/dev/null
     tar czvf $TARGET.tar.gz $TARGET
     if [ -e $DIR/dist/$TARGET.tar.gz ]; then
         echo "... WARNING overwriting dist/$TARGET.tar.gz"
     fi
-    mv $TARGET.tar.gz $DIR/dist
+
+    mkdir -p $DIR/dist
+    mv $TARGET.tar.gz $DIR/dist/
     echo "... built dist/$TARGET.tar.gz"
     popd >/dev/null
 done
\ No newline at end of file
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..335e738
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,5 @@
+module github.com/jehiah/json2csv
+
+go 1.13
+
+require github.com/stretchr/testify v1.4.0
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..8fdee58
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,11 @@
+github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+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 v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk=
+github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
diff --git a/main.go b/main.go
index 21aaf04..eca0ae4 100644
--- a/main.go
+++ b/main.go
@@ -10,6 +10,7 @@ import (
 	"log"
 	"math"
 	"os"
+	"runtime"
 	"strings"
 	"unicode/utf8"
 )
@@ -29,7 +30,7 @@ func main() {
 	flag.Parse()
 
 	if *showVersion {
-		fmt.Printf("json2csv %s\n", VERSION)
+		fmt.Printf("json2csv v%s (built w/%s)\n", VERSION, runtime.Version())
 		return
 	}
 
diff --git a/main_test.go b/main_test.go
index b023145..f52ac01 100644
--- a/main_test.go
+++ b/main_test.go
@@ -8,7 +8,7 @@ import (
 	"os"
 	"testing"
 
-	"github.com/bmizerany/assert"
+	"github.com/stretchr/testify/assert"
 )
 
 func TestGetTopic(t *testing.T) {
diff --git a/version.go b/version.go
index 8a86f98..6b4c050 100644
--- a/version.go
+++ b/version.go
@@ -1,3 +1,3 @@
 package main
 
-const VERSION = "1.2.0"
+const VERSION = "1.2.1"