diff --git a/Gopkg.toml b/Gopkg.toml
index 8586456eb3d..4c9aa29255d 100644
--- a/Gopkg.toml
+++ b/Gopkg.toml
@@ -115,6 +115,10 @@ required = [
   name = "google.golang.org/grpc"
   version = "^1.20.1"
 
+[[constraint]]
+  name = "gopkg.in/yaml.v2"
+  version = "^2.2.4"
+
 [[constraint]]
   name = "github.com/olivere/elastic"
   version = "^6.2.22"