diff --git a/Gopkg.lock b/Gopkg.lock
index 117589e..ffb277a 100644
--- a/Gopkg.lock
+++ b/Gopkg.lock
@@ -246,15 +246,16 @@
     "balancer",
     "balancer/base",
     "balancer/roundrobin",
-    "channelz",
     "codes",
     "connectivity",
     "credentials",
     "encoding",
     "encoding/proto",
-    "grpclb/grpc_lb_v1/messages",
     "grpclog",
     "internal",
+    "internal/backoff",
+    "internal/channelz",
+    "internal/grpcrand",
     "keepalive",
     "metadata",
     "naming",
@@ -267,8 +268,8 @@
     "tap",
     "transport"
   ]
-  revision = "7a6a684ca69eb4cae85ad0a484f2e531598c047b"
-  version = "v1.12.2"
+  revision = "168a6198bcb0ef175f7dacec0b8691fc141dc9b8"
+  version = "v1.13.0"
 
 [[projects]]
   name = "gopkg.in/yaml.v2"