diff --git a/src/go-concurrency-in-practice/go.mod b/src/go-concurrency-in-practice/go.mod
index 45c03db..cd4f898 100644
--- a/src/go-concurrency-in-practice/go.mod
+++ b/src/go-concurrency-in-practice/go.mod
@@ -2,25 +2,27 @@ module go-cip
 
 go 1.18
 
-require github.com/petermattis/goid v0.0.0-20220512133901-1f93b0c1af58
+require (
+	github.com/marusama/cyclicbarrier v1.1.0
+	github.com/petermattis/goid v0.0.0-20220512133901-1f93b0c1af58
+	github.com/vardius/gollback v1.1.0
+	go.etcd.io/etcd/client/v3 v3.5.4
+	golang.org/x/sync v0.0.0-20220513210516-0976fa681c29
+)
 
 require (
 	github.com/coreos/go-semver v0.3.0 // indirect
 	github.com/coreos/go-systemd/v22 v22.3.2 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/golang/protobuf v1.5.2 // indirect
-	github.com/marusama/cyclicbarrier v1.1.0 // indirect
-	github.com/vardius/gollback v1.1.0 // indirect
 	go.etcd.io/etcd/api/v3 v3.5.4 // indirect
 	go.etcd.io/etcd/client/pkg/v3 v3.5.4 // indirect
-	go.etcd.io/etcd/client/v3 v3.5.4 // indirect
 	go.uber.org/atomic v1.7.0 // indirect
 	go.uber.org/multierr v1.6.0 // indirect
 	go.uber.org/zap v1.17.0 // indirect
-	golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4 // indirect
-	golang.org/x/sync v0.0.0-20220513210516-0976fa681c29 // indirect
-	golang.org/x/sys v0.0.0-20210603081109-ebe580a85c40 // indirect
-	golang.org/x/text v0.3.5 // indirect
+	golang.org/x/net v0.17.0 // indirect
+	golang.org/x/sys v0.13.0 // indirect
+	golang.org/x/text v0.13.0 // indirect
 	google.golang.org/genproto v0.0.0-20210602131652-f16073e35f0c // indirect
 	google.golang.org/grpc v1.38.0 // indirect
 	google.golang.org/protobuf v1.26.0 // indirect