diff --git a/vendor/modules.txt b/vendor/modules.txt
index 0af5d43ae..5644a8eaf 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -140,6 +140,8 @@ github.com/census-instrumentation/opencensus-proto/gen-go/resource/v1
 github.com/census-instrumentation/opencensus-proto/gen-go/trace/v1
 # github.com/cheggaaa/pb v1.0.27
 github.com/cheggaaa/pb
+# github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e
+github.com/chzyer/readline
 # github.com/creack/goselect v0.1.0
 github.com/creack/goselect
 # github.com/davecgh/go-spew v1.1.1