diff --git a/Dockerfile b/Dockerfile
index 3cb8775..1929cee 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.13-alpine3.11 AS builder
+FROM golang:1.14-alpine3.11 AS builder
 RUN apk add --no-cache git
 WORKDIR ${GOPATH}/src/github.com/guessi/ssl-certs-checker
 COPY . .
diff --git a/go.mod b/go.mod
index 4590328..11fafa5 100644
--- a/go.mod
+++ b/go.mod
@@ -1,13 +1,12 @@
 module github.com/guessi/ssl-certs-checker
 
-go 1.13
+go 1.14
 
 require (
-	github.com/cpuguy83/go-md2man/v2 v2.0.0 // indirect
-	github.com/go-openapi/strfmt v0.19.4 // indirect
+	github.com/go-openapi/strfmt v0.19.5 // indirect
 	github.com/jedib0t/go-pretty v4.3.0+incompatible
 	github.com/mattn/go-runewidth v0.0.8 // indirect
 	github.com/stretchr/testify v1.5.1 // indirect
 	github.com/urfave/cli/v2 v2.2.0
-	golang.org/x/sys v0.0.0-20200219091948-cb0a6d8edb6c // indirect
+	golang.org/x/sys v0.0.0-20200302150141-5c8b2ff67527 // indirect
 )
diff --git a/go.sum b/go.sum
index 35899af..9a6da66 100644
--- a/go.sum
+++ b/go.sum
@@ -3,15 +3,13 @@ github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a h1:idn718Q4
 github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a/go.mod h1:lB+ZfQJz7igIIfQNfa7Ml4HSf2uFQQRzpGGRXenZAgY=
 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/cpuguy83/go-md2man/v2 v2.0.0 h1:EoUDS0afbrsXAZ9YQ9jdu/mZ2sXgT1/2yyNng4PGlyM=
-github.com/cpuguy83/go-md2man/v2 v2.0.0/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 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/go-openapi/errors v0.19.2 h1:a2kIyV3w+OS3S97zxUndRVD46+FhGOUBDFY7nmu4CsY=
 github.com/go-openapi/errors v0.19.2/go.mod h1:qX0BLWsyaKfvhluLejVpVNwNRdXZhEbTA4kxxpKBC94=
-github.com/go-openapi/strfmt v0.19.4 h1:eRvaqAhpL0IL6Trh5fDsGnGhiXndzHFuA05w6sXH6/g=
-github.com/go-openapi/strfmt v0.19.4/go.mod h1:eftuHTlB/dI8Uq8JJOyRlieZf+WkkxUuk0dgdHXr2Qk=
+github.com/go-openapi/strfmt v0.19.5 h1:0utjKrw+BAh8s57XE9Xz8DUBsVvPmRUB6styvl9wWIM=
+github.com/go-openapi/strfmt v0.19.5/go.mod h1:eftuHTlB/dI8Uq8JJOyRlieZf+WkkxUuk0dgdHXr2Qk=
 github.com/go-stack/stack v1.8.0 h1:5SgMzNM5HxrEjV0ww2lTmX6E2Izsfxas4+YHWRs3Lsk=
 github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
 github.com/google/go-cmp v0.3.0 h1:crn/baboCvb5fXaQ0IJ1SGTsTVrWpDsCWC8EGETZijY=
@@ -41,8 +39,8 @@ github.com/urfave/cli/v2 v2.2.0 h1:JTTnM6wKzdA0Jqodd966MVj4vWbbquZykeX1sKbe2C4=
 github.com/urfave/cli/v2 v2.2.0/go.mod h1:SE9GqnLQmjVa0iPEY0f1w3ygNIYcIJ0OKPMoW2caLfQ=
 go.mongodb.org/mongo-driver v1.0.3 h1:GKoji1ld3tw2aC+GX1wbr/J2fX13yNacEYoJ8Nhr0yU=
 go.mongodb.org/mongo-driver v1.0.3/go.mod h1:u7ryQJ+DOzQmeO7zB6MHyr8jkEQvC8vH7qLUO4lqsUM=
-golang.org/x/sys v0.0.0-20200219091948-cb0a6d8edb6c h1:jceGD5YNJGgGMkJz79agzOln1K9TaZUjv5ird16qniQ=
-golang.org/x/sys v0.0.0-20200219091948-cb0a6d8edb6c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200302150141-5c8b2ff67527 h1:uYVVQ9WP/Ds2ROhcaGPeIdVq0RIXVLwsHlnvJ+cT1So=
+golang.org/x/sys v0.0.0-20200302150141-5c8b2ff67527/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=