diff --git a/go.mod b/go.mod
index 57f50778e0..a2bbb04019 100644
--- a/go.mod
+++ b/go.mod
@@ -21,6 +21,6 @@ require (
 	golang.org/x/sys v0.0.0-20190904154756-749cb33beabd
 	gonum.org/v1/hdf5 v0.0.0-20190516085527-847297cb569e
 	google.golang.org/genproto v0.0.0-20190905072037-92dd089d5514
-	google.golang.org/grpc v1.23.0
+	google.golang.org/grpc v1.23.1
 	gopkg.in/yaml.v2 v2.2.2
 )
diff --git a/go.sum b/go.sum
index eac5f0b51b..e0b2af448c 100644
--- a/go.sum
+++ b/go.sum
@@ -113,6 +113,8 @@ google.golang.org/genproto v0.0.0-20190905072037-92dd089d5514/go.mod h1:DMBHOl98
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.23.0 h1:AzbTB6ux+okLTzP8Ru1Xs41C303zdcfEht7MQnYJt5A=
 google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
+google.golang.org/grpc v1.23.1 h1:q4XQuHFC6I28BKZpo6IYyb3mNO+l7lSOxRuYTCiDfXk=
+google.golang.org/grpc v1.23.1/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=