diff --git a/api/core/v3/go.mod b/api/core/v3/go.mod
index 46c60c1ec6..b421e831bb 100644
--- a/api/core/v3/go.mod
+++ b/api/core/v3/go.mod
@@ -7,15 +7,18 @@ require (
 	github.com/golang/protobuf v1.5.2
 	github.com/sensu/sensu-go/api/core/v2 v2.15.0
 	github.com/sensu/sensu-go/types v0.11.0
+	github.com/stretchr/testify v1.6.0
 )
 
 require (
 	github.com/blang/semver/v4 v4.0.0 // indirect
 	github.com/coreos/go-semver v0.3.0 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/echlebek/timeproxy v1.0.0 // indirect
 	github.com/golang-jwt/jwt/v4 v4.0.0 // indirect
 	github.com/google/uuid v1.1.2 // indirect
 	github.com/konsorten/go-windows-terminal-sequences v1.0.3 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/robertkrimen/otto v0.0.0-20191219234010-c382bd3c16ff // indirect
 	github.com/robfig/cron/v3 v3.0.1 // indirect
 	github.com/sirupsen/logrus v1.6.0 // indirect
@@ -27,4 +30,5 @@ require (
 	google.golang.org/grpc v1.38.0 // indirect
 	google.golang.org/protobuf v1.26.0 // indirect
 	gopkg.in/sourcemap.v1 v1.0.5 // indirect
+	gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c // indirect
 )
diff --git a/api/core/v3/go.sum b/api/core/v3/go.sum
index 53cd5c2f67..49bc59a840 100644
--- a/api/core/v3/go.sum
+++ b/api/core/v3/go.sum
@@ -174,6 +174,7 @@ google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlba
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
 google.golang.org/protobuf v1.26.0 h1:bxAC2xTBsZGibn2RTntX0oH50xLsqy1OxA9tTL3p/lk=
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/sourcemap.v1 v1.0.5 h1:inv58fC9f9J3TK2Y2R1NPntXEn3/wjWHkonhIUODNTI=
 gopkg.in/sourcemap.v1 v1.0.5/go.mod h1:2RlvNNSMglmRrcvhfuzp4hQHwOtjxlbjX7UPY/GXb78=