diff --git a/cmd/alertmanager/main_test.go b/cmd/alertmanager/main_test.go
index 8939853608..3433a2aa5a 100644
--- a/cmd/alertmanager/main_test.go
+++ b/cmd/alertmanager/main_test.go
@@ -19,6 +19,7 @@ import (
 
 	"github.com/go-kit/log"
 	"github.com/stretchr/testify/require"
+	_ "go.uber.org/automaxprocs"
 )
 
 func TestExternalURL(t *testing.T) {
diff --git a/go.mod b/go.mod
index 76aa4a2f4b..ea8ac69317 100644
--- a/go.mod
+++ b/go.mod
@@ -85,6 +85,7 @@ require (
 	go.opentelemetry.io/otel v1.17.0 // indirect
 	go.opentelemetry.io/otel/metric v1.17.0 // indirect
 	go.opentelemetry.io/otel/trace v1.17.0 // indirect
+	go.uber.org/automaxprocs v1.5.3 // indirect
 	golang.org/x/crypto v0.18.0 // indirect
 	golang.org/x/oauth2 v0.16.0 // indirect
 	golang.org/x/sync v0.6.0 // indirect
diff --git a/go.sum b/go.sum
index 60f1a0a695..309079a680 100644
--- a/go.sum
+++ b/go.sum
@@ -526,6 +526,8 @@ go.opentelemetry.io/proto/otlp v0.7.0/go.mod h1:PqfVotwruBrMGOCsRd/89rSnXhoiJIqe
 go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
 go.uber.org/atomic v1.11.0 h1:ZvwS0R+56ePWxUNi+Atn9dWONBPp/AUETXlHW0DxSjE=
 go.uber.org/atomic v1.11.0/go.mod h1:LUxbIzbOniOlMKjJjyPfpl4v+PKK2cNJn91OQbhoJI0=
+go.uber.org/automaxprocs v1.5.3 h1:kWazyxZUrS3Gs4qUpbwo5kEIMGe/DAvi5Z4tl2NW4j8=
+go.uber.org/automaxprocs v1.5.3/go.mod h1:eRbA25aqJrxAbsLO0xy5jVwPt7FQnRgjW+efnwa1WM0=
 go.uber.org/multierr v1.6.0/go.mod h1:cdWPpRnG4AhwMwsgIHip0KRBQjJy5kYEpYjJxpXp9iU=
 go.uber.org/zap v1.17.0/go.mod h1:MXVU+bhUf/A7Xi2HNOnopQOrmycQ5Ih87HtOu4q5SSo=
 golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=