diff --git a/crud.go b/crud.go
index 456cce0..1349b53 100644
--- a/crud.go
+++ b/crud.go
@@ -7,20 +7,22 @@ import (
 	"strings"
 	"time"
 
-	"github.com/davecgh/go-spew/spew"
 	mgo "gopkg.in/mgo.v2"
 	"gopkg.in/mgo.v2/bson"
 )
 
+// ErrorWithStack is error which stored its stack trace
 type ErrorWithStack struct {
 	Message    string
 	StackTrace string
 }
 
+// Error returns error message
 func (e *ErrorWithStack) Error() string {
 	return e.Message
 }
 
+// Stack returns strack trace to error origin
 func (e *ErrorWithStack) Stack() string {
 	return e.StackTrace
 }
@@ -181,7 +183,7 @@ func ReadCollection(db *mgo.Database, results interface{}, filter bson.M, select
 					sortM[s] = 1
 				}
 			}
-			spew.Dump(sortM)
+			// spew.Dump(sortM)
 			pipeline = append(pipeline, bson.M{
 				"$sort": sortM,
 			})
@@ -214,7 +216,7 @@ func ReadCollection(db *mgo.Database, results interface{}, filter bson.M, select
 
 		idToObjectID(filter)
 
-		spew.Dump(filter)
+		// spew.Dump(filter)
 
 		q := c.Find(filter)
 		if selector != nil {
diff --git a/go.mod b/go.mod
index 1ea1416..48bd15e 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,6 @@ module gitbase.de/gopackage/mgocrud
 go 1.16
 
 require (
-	github.com/davecgh/go-spew v1.1.1
 	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
 	gopkg.in/go-playground/assert.v1 v1.2.1 // indirect
 	gopkg.in/go-playground/validator.v8 v8.18.2
diff --git a/go.sum b/go.sum
index ed7f7f6..f2b3b5a 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,3 @@
-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/kr/pretty v0.2.1 h1:Fmg33tUaq4/8ym9TJN1x7sLJnHVwhP33CNkpYV/7rwI=
 github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=