diff --git a/.gitignore b/.gitignore
index 0047d7e..89f0235 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,5 @@
 *~
 **/main
 *.swp
+build/
+coverage.txt
diff --git a/.travis.yml b/.travis.yml
index 35dfb22..497a1b0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,13 +1,12 @@
 language: go
 sudo: false
 go:
-  - 1.x
-
-before_install:
-  - go get -t -v ./...
+  - '1.13.x'
+  - '1.14.x'
 
 script:
   - ./test.sh
+  - go build -v -o build/easypki ./cmd/easypki
 
 after_success:
   - bash <(curl -s https://codecov.io/bash)
diff --git a/cmd/easypki/main.go b/cmd/easypki/main.go
index bf55692..25293b3 100644
--- a/cmd/easypki/main.go
+++ b/cmd/easypki/main.go
@@ -28,10 +28,10 @@ import (
 
 	"encoding/pem"
 
-	"github.com/codegangsta/cli"
 	"github.com/google/easypki/pkg/certificate"
 	"github.com/google/easypki/pkg/easypki"
 	"github.com/google/easypki/pkg/store"
+	"github.com/urfave/cli"
 )
 
 const (
diff --git a/example/client-auth/client-auth.go b/example/client-auth/client-auth.go
index 8b1e4bf..1f991b1 100644
--- a/example/client-auth/client-auth.go
+++ b/example/client-auth/client-auth.go
@@ -10,11 +10,11 @@ import (
 	"os"
 	"time"
 
-	"github.com/boltdb/bolt"
 	"github.com/go-yaml/yaml"
 	"github.com/google/easypki/pkg/certificate"
 	"github.com/google/easypki/pkg/easypki"
 	"github.com/google/easypki/pkg/store"
+	bolt "go.etcd.io/bbolt"
 )
 
 func main() {
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..4c822b2
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,10 @@
+module github.com/google/easypki
+
+go 1.13
+
+require (
+	github.com/go-yaml/yaml v2.1.0+incompatible
+	github.com/urfave/cli v1.22.4
+	go.etcd.io/bbolt v1.3.4
+	golang.org/x/sys v0.0.0-20200413165638-669c56c373c4 // indirect
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..2853b80
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,22 @@
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d h1:U+s90UTSYgptZMwQh2aRr3LuazLJIa+Pg3Kc1ylSYVY=
+github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
+github.com/go-yaml/yaml v2.1.0+incompatible h1:RYi2hDdss1u4YE7GwixGzWwVo47T8UQwnTLB6vQiq+o=
+github.com/go-yaml/yaml v2.1.0+incompatible/go.mod h1:w2MrLa16VYP0jy6N7M5kHaCkaLENm+P+Tv+MfurjSw0=
+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/russross/blackfriday/v2 v2.0.1 h1:lPqVAte+HuHNfhJ/0LC98ESWRz8afy9tM/0RK8m9o+Q=
+github.com/russross/blackfriday/v2 v2.0.1/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
+github.com/shurcooL/sanitized_anchor_name v1.0.0 h1:PdmoCO6wvbs+7yrJyMORt4/BmY5IYyJwS/kOiWx8mHo=
+github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
+github.com/urfave/cli v1.22.4 h1:u7tSpNPPswAFymm8IehJhy4uJMlUuU/GmqSkvJ1InXA=
+github.com/urfave/cli v1.22.4/go.mod h1:Gos4lmkARVdJ6EkW0WaNv/tZAAMe9V7XWyB60NtXRu0=
+go.etcd.io/bbolt v1.3.4 h1:hi1bXHMVrlQh6WwxAy+qZCV/SYIlqo+Ushwdpa4tAKg=
+go.etcd.io/bbolt v1.3.4/go.mod h1:G5EMThwa9y8QZGBClrRx5EY+Yw9kAhnjy3bSjsnlVTQ=
+golang.org/x/sys v0.0.0-20200202164722-d101bd2416d5/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200413165638-669c56c373c4 h1:opSr2sbRXk5X5/givKrrKj9HXxFpW2sdCiP8MJSKLQY=
+golang.org/x/sys v0.0.0-20200413165638-669c56c373c4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+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/pkg/easypki/easypki_test.go b/pkg/easypki/easypki_test.go
index 77a5858..1670400 100644
--- a/pkg/easypki/easypki_test.go
+++ b/pkg/easypki/easypki_test.go
@@ -23,8 +23,8 @@ import (
 	"testing"
 	"time"
 
-	"github.com/boltdb/bolt"
 	"github.com/google/easypki/pkg/store"
+	bolt "go.etcd.io/bbolt"
 
 	"reflect"
 )
diff --git a/pkg/store/bolt.go b/pkg/store/bolt.go
index 4f4f5a9..c62ad49 100644
--- a/pkg/store/bolt.go
+++ b/pkg/store/bolt.go
@@ -22,8 +22,8 @@ import (
 
 	"fmt"
 
-	"github.com/boltdb/bolt"
 	"github.com/google/easypki/pkg/certificate"
+	bolt "go.etcd.io/bbolt"
 )
 
 var (
diff --git a/pkg/store/bolt_test.go b/pkg/store/bolt_test.go
index 6ae940d..e4b30e1 100644
--- a/pkg/store/bolt_test.go
+++ b/pkg/store/bolt_test.go
@@ -23,8 +23,8 @@ import (
 
 	"reflect"
 
-	"github.com/boltdb/bolt"
 	"github.com/google/easypki/pkg/certificate"
+	bolt "go.etcd.io/bbolt"
 )
 
 func TestBolt(t *testing.T) {
diff --git a/pkg/store/local.go b/pkg/store/local.go
index 1895e83..8d188af 100644
--- a/pkg/store/local.go
+++ b/pkg/store/local.go
@@ -48,7 +48,7 @@ var (
 	// 4 Serial
 	// 5 Filename
 	// 6 Subject
-	indexRegexp = regexp.MustCompile("^(V|R|E)\t([0-9]{12}Z)\t([0-9]{12}Z)?\t([0-9a-fA-F]{2,})\t([^\t]+)\t(.+)")
+	indexRegexp = regexp.MustCompile("^([VRE])\t([0-9]{12}Z)\t([0-9]{12}Z)?\t([0-9a-fA-F]{2,})\t([^\t]+)\t(.+)")
 )
 
 // Local lets us store a Certificate Authority on the local filesystem.
diff --git a/test.sh b/test.sh
index 34dbbfb..33d7510 100755
--- a/test.sh
+++ b/test.sh
@@ -1,12 +1,13 @@
 #!/usr/bin/env bash
 
-set -e
-echo "" > coverage.txt
+set -Eeuo pipefail
+
+true > coverage.txt
 
 for d in $(go list ./... | grep -v vendor); do
-    go test -race -coverprofile=profile.out -covermode=atomic $d
+    go test -race -coverprofile=profile.out -covermode=atomic "$d"
     if [ -f profile.out ]; then
         cat profile.out >> coverage.txt
-        rm profile.out
+        rm -f profile.out
     fi
 done