diff --git a/cmd/postgres_exporter/postgres_exporter_test.go b/cmd/postgres_exporter/postgres_exporter_test.go
index f65614e50..bdf4d247e 100644
--- a/cmd/postgres_exporter/postgres_exporter_test.go
+++ b/cmd/postgres_exporter/postgres_exporter_test.go
@@ -18,13 +18,11 @@ import (
 // Hook up gocheck into the "go test" runner.
 func Test(t *testing.T) { TestingT(t) }
 
-type FunctionalSuite struct {
-}
+type FunctionalSuite struct{}
 
 var _ = Suite(&FunctionalSuite{})
 
 func (s *FunctionalSuite) SetUpSuite(c *C) {
-
 }
 
 func (s *FunctionalSuite) TestSemanticVersionColumnDiscard(c *C) {
@@ -111,7 +109,7 @@ func (s *FunctionalSuite) TestEnvironmentSettingWithSecretsFiles(c *C) {
 	c.Assert(err, IsNil)
 	defer UnsetEnvironment(c, "DATA_SOURCE_URI")
 
-	var expected = "postgresql://custom_username$&+,%2F%3A;=%3F%40:custom_password$&+,%2F%3A;=%3F%40@localhost:5432/?sslmode=disable"
+	expected := "postgresql://custom_username$&+,%2F%3A;=%3F%40:custom_password$&+,%2F%3A;=%3F%40@localhost:5432/?sslmode=disable"
 
 	dsn := getDataSources()
 	if len(dsn) == 0 {
@@ -165,7 +163,7 @@ func (s *FunctionalSuite) TestEnvironmentSettingWithDnsAndSecrets(c *C) {
 // test DSN including SSL enabled
 func (s *FunctionalSuite) TestSSL(c *C) {
 	// Thr driver doesn't support sslmode=prefer
-	envDsn := "postgresql://root:root@localhost:5433/?sslmode=require"
+	envDsn := "host=127.0.0.1 port=5433 user=root password=root database=postgres sslmode=require"
 	err := os.Setenv("DATA_SOURCE_NAME", envDsn)
 	c.Assert(err, IsNil)
 	defer UnsetEnvironment(c, "DATA_SOURCE_NAME")
@@ -196,7 +194,6 @@ func (s *FunctionalSuite) TestSSL(c *C) {
 
 	db, err := sql.Open("postgres", dsn[0])
 	c.Assert(err, IsNil)
-	//v95 := semver.MustParse("9.5.0")
 	version, err := postgresVersion(db)
 	c.Assert(err, IsNil)
 	if version < 90500 {
@@ -328,7 +325,6 @@ func UnsetEnvironment(c *C, d string) {
 
 // test boolean metric type gets converted to float
 func (s *FunctionalSuite) TestBooleanConversionToValueAndString(c *C) {
-
 	type TestCase struct {
 		input          interface{}
 		expectedString string
diff --git a/go.mod b/go.mod
index 408cdae59..9ca3b84c6 100644
--- a/go.mod
+++ b/go.mod
@@ -8,7 +8,7 @@ require (
 	github.com/golang/protobuf v1.5.2 // indirect
 	github.com/google/go-querystring v1.1.0 // indirect
 	github.com/lib/pq v1.9.0
-	github.com/percona/exporter_shared v0.7.2
+	github.com/percona/exporter_shared v0.7.3
 	github.com/percona/postgres_exporter v0.4.6 // indirect
 	github.com/prometheus/client_golang v1.10.0
 	github.com/prometheus/client_model v0.2.0
diff --git a/go.sum b/go.sum
index 21fe9b067..5d5889f5d 100644
--- a/go.sum
+++ b/go.sum
@@ -302,6 +302,8 @@ github.com/pascaldekloe/goe v0.0.0-20180627143212-57f6aae5913c/go.mod h1:lzWF7FI
 github.com/pborman/uuid v1.2.0/go.mod h1:X/NO0urCmaxf9VXbdlT7C2Yzkj2IKimNn4k+gtPdI/k=
 github.com/percona/exporter_shared v0.7.2 h1:8eNBht83bgFagdiIm3b4HbsOFc5du6OUBCUVenTumdw=
 github.com/percona/exporter_shared v0.7.2/go.mod h1:AWk9lgTPzI7tC5PzpeBGvhhqjSJNxpPNFaF7qLIJqmo=
+github.com/percona/exporter_shared v0.7.3 h1:TX4LisZ08jo8KIlekBTwPX13JlM6gOOKgmwg7QEf+r8=
+github.com/percona/exporter_shared v0.7.3/go.mod h1:AWk9lgTPzI7tC5PzpeBGvhhqjSJNxpPNFaF7qLIJqmo=
 github.com/percona/postgres_exporter v0.4.6 h1:/x0qAgP7fzmle/MS3sPKt+3FW94amnUqTJtlibgGNSk=
 github.com/percona/postgres_exporter v0.4.6/go.mod h1:n1QU5O3iehITC/jEOGg1G0U/yKalDDmQVrELcjDMafw=
 github.com/performancecopilot/speed v3.0.0+incompatible/go.mod h1:/CLtqpZ5gBg1M9iaPbIdPPGyKcA8hKdoy6hAWba7Yac=