diff --git a/database/postgres/postgres.go b/database/postgres/postgres.go
index 3fe2f47..3703bc0 100644
--- a/database/postgres/postgres.go
+++ b/database/postgres/postgres.go
@@ -14,6 +14,7 @@ import (
 
 	"github.com/golang-migrate/migrate/v4"
 	"github.com/golang-migrate/migrate/v4/database"
+	multierror "github.com/hashicorp/go-multierror"
 	"github.com/lib/pq"
 )
 
@@ -341,7 +342,7 @@ func (p *Postgres) ensureVersionTable() (err error) {
 		if e := p.Unlock(); err == nil {
 			err = e
 		} else if e != nil {
-			err = &database.Error{OrigErr: err, Err: e.Error()}
+			err = multierror.Append(err, e)
 		}
 	}()
 
diff --git a/go.mod b/go.mod
index bb6ae94..981e948 100644
--- a/go.mod
+++ b/go.mod
@@ -19,6 +19,7 @@ require (
 	github.com/google/go-querystring v1.0.0 // indirect
 	github.com/google/martian v2.1.0+incompatible // indirect
 	github.com/gopherjs/gopherjs v0.0.0-20181004151105-1babbf986f6f // indirect
+	github.com/hashicorp/go-multierror v1.0.0
 	github.com/jackc/fake v0.0.0-20150926172116-812a484cc733 // indirect
 	github.com/jackc/pgx v3.2.0+incompatible // indirect
 	github.com/jmespath/go-jmespath v0.0.0-20180206201540-c2b33e8439af // indirect
diff --git a/go.sum b/go.sum
index 3acac6a..536508a 100644
--- a/go.sum
+++ b/go.sum
@@ -100,6 +100,10 @@ github.com/gorilla/mux v1.6.2 h1:Pgr17XVTNXAk3q/r4CpKzC5xBM/qW1uVLV+IhRZpIIk=
 github.com/gorilla/mux v1.6.2/go.mod h1:1lud6UwP+6orDFRuTfBEV8e9/aOM/c4fVVCaMa2zaAs=
 github.com/hailocab/go-hostpool v0.0.0-20160125115350-e80d13ce29ed h1:5upAirOpQc1Q53c0bnx2ufif5kANL7bfZWcc6VJWJd8=
 github.com/hailocab/go-hostpool v0.0.0-20160125115350-e80d13ce29ed/go.mod h1:tMWxXQ9wFIaZeTI9F+hmhFiGpFmhOHzyShyFUhRm0H4=
+github.com/hashicorp/errwrap v1.0.0 h1:hLrqtEDnRye3+sgx6z4qVLNuviH3MR5aQ0ykNJa/UYA=
+github.com/hashicorp/errwrap v1.0.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
+github.com/hashicorp/go-multierror v1.0.0 h1:iVjPR7a6H0tWELX5NxNe7bYopibicUzc7uPribsnS6o=
+github.com/hashicorp/go-multierror v1.0.0/go.mod h1:dHtQlpGsu+cZNNAkkCN/P3hoUDHhCYQXV3UM06sGGrk=
 github.com/jackc/fake v0.0.0-20150926172116-812a484cc733 h1:vr3AYkKovP8uR8AvSGGUK1IDqRa5lAAvEkZG1LKaCRc=
 github.com/jackc/fake v0.0.0-20150926172116-812a484cc733/go.mod h1:WrMFNQdiFJ80sQsxDoMokWK1W5TQtxBFNpzWTD84ibQ=
 github.com/jackc/pgx v3.2.0+incompatible h1:0Vihzu20St42/UDsvZGdNE6jak7oi/UOeMzwMPHkgFY=