diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..6e92f57
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+tags
diff --git a/fcm.go b/fcm.go
index 55e0dd4..93837b4 100644
--- a/fcm.go
+++ b/fcm.go
@@ -21,7 +21,7 @@ import (
 	"net/http"
 	"net/textproto"
 
-	"git.bit5.ru/backend/colog"
+	"github.com/go-logr/logr"
 	"git.bit5.ru/backend/errors"
 	"golang.org/x/oauth2"
 )
@@ -80,10 +80,10 @@ type Client struct {
 	cfg    ClientConfig
 	ts     oauth2.TokenSource
 	hc     *http.Client
-	logger *colog.CoLog
+	logger logr.Logger
 }
 
-func NewClient(cfg ClientConfig, ts oauth2.TokenSource, hc *http.Client, logger *colog.CoLog) *Client {
+func NewClient(cfg ClientConfig, ts oauth2.TokenSource, hc *http.Client, logger logr.Logger) *Client {
 	return &Client{
 		cfg:    cfg,
 		ts:     ts,
@@ -120,7 +120,7 @@ func (c *Client) doSendRequest(req SendRequest) (SendResponse, error) {
 	if err != nil {
 		return SendResponse{}, errors.WithStack(err)
 	}
-	c.logger.Logf("sending message: %s", data)
+	c.logger.Info("sending", "message", data)
 
 	request, err := http.NewRequest(http.MethodPost, c.cfg.SendEndpoint, bytes.NewReader(data))
 	if err != nil {
@@ -280,7 +280,7 @@ func (c *Client) makeMultiSendResponse(response *http.Response, totalCount int)
 
 		responses = append(responses, resp)
 		if resp.HasError() {
-			c.logger.Logf("error: %+v", *resp.Error)
+	    c.logger.Info("fail", "error", fmt.Sprintf("%+v", *resp.Error))
 			fails++
 		}
 	}
diff --git a/go.mod b/go.mod
index 7f33dad..413bcea 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module git.bit5.ru/backend/fcm
 go 1.13
 
 require (
-	git.bit5.ru/backend/colog v1.0.0
 	git.bit5.ru/backend/errors v1.0.0
 	golang.org/x/oauth2 v0.1.0
+	github.com/go-logr/logr v1.2.3
 )
diff --git a/go.sum b/go.sum
index ea2ce4b..a470ea4 100644
--- a/go.sum
+++ b/go.sum
@@ -93,6 +93,8 @@ github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeME
 github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
 github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
 github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
+github.com/go-logr/logr v1.2.3 h1:2DntVwHkVopvECVRSlL5PSo9eG+cAkDCuckLubN+rq0=
+github.com/go-logr/logr v1.2.3/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
 github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
 github.com/golang/groupcache v0.0.0-20191227052852-215e87163ea7/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=