diff --git a/tools.go b/tools.go
index f6bbc4a62..bc99bb385 100644
--- a/tools.go
+++ b/tools.go
@@ -7,5 +7,6 @@ import (
 	_ "github.com/99designs/gqlgen/graphql/introspection"
 	_ "github.com/bluesky-social/indigo/cmd/lexgen"
 	_ "github.com/golangci/golangci-lint/v2/cmd/golangci-lint"
+	_ "github.com/prometheus/client_model/go"
 	_ "golang.org/x/tools/cmd/goimports"
 )