diff --git a/go.mod b/go.mod
index bf8b6d3..98be8f7 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,6 @@ module github.com/j75689/easybot
 go 1.12
 
 require (
-	github.com/BurntSushi/toml v0.3.1 // indirect
 	github.com/GeertJohan/go.rice v1.0.0
 	github.com/dgrijalva/jwt-go v3.2.0+incompatible
 	github.com/fatih/structs v1.1.0
@@ -11,24 +10,15 @@ require (
 	github.com/gin-contrib/sessions v0.0.0-20190226023029-1532893d996f
 	github.com/gin-gonic/contrib v0.0.0-20190302003538-54ff787f7c73
 	github.com/gin-gonic/gin v1.3.0
-	github.com/go-stack/stack v1.8.0 // indirect
-	github.com/golang/snappy v0.0.1 // indirect
-	github.com/google/go-cmp v0.2.0 // indirect
 	github.com/j75689/lineemoji v0.0.0-20190403063654-d064128443d5
 	github.com/line/line-bot-sdk-go v6.1.0+incompatible
 	github.com/machinebox/graphql v0.2.2
 	github.com/matryer/is v1.2.0 // indirect
-	github.com/pkg/errors v0.8.1 // indirect
-	github.com/tidwall/pretty v0.0.0-20190325153808-1166b9ac2b65 // indirect
-	github.com/xdg/scram v0.0.0-20180814205039-7eeb5667e42c // indirect
-	github.com/xdg/stringprep v1.0.0 // indirect
 	go.etcd.io/bbolt v1.3.2
-	go.mongodb.org/mongo-driver v1.0.0
+	go.mongodb.org/mongo-driver v1.5.1
 	go.uber.org/atomic v1.3.2 // indirect
 	go.uber.org/multierr v1.1.0 // indirect
 	go.uber.org/zap v1.9.1
-	golang.org/x/crypto v0.0.0-20190325154230-a5d413f7728c // indirect
-	golang.org/x/text v0.3.0 // indirect
 	gopkg.in/natefinch/lumberjack.v2 v2.0.0
 
 )