diff --git a/go.mod b/go.mod
index afd5f07..30088ef 100644
--- a/go.mod
+++ b/go.mod
@@ -83,7 +83,7 @@
 	github.com/yosuke-furukawa/json5 v0.1.1 // indirect
 	github.com/zeebo/bencode v1.0.0
 	go.chromium.org/gae v0.0.0-20190826183307-50a499513efa // indirect
-	go.chromium.org/luci v0.0.0-20200115213038-6a43f0c610a5
+	go.chromium.org/luci v0.0.0-20200117005442-eb879596d415
 	go.opencensus.io v0.22.2
 	golang.org/x/crypto v0.0.0-20191117063200-497ca9f6d64f
 	golang.org/x/image v0.0.0-20191009234506-e7c1f5e7dbb8 // indirect
@@ -93,7 +93,7 @@
 	golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e
 	golang.org/x/sys v0.0.0-20200116001909-b77594299b42 // indirect
 	golang.org/x/time v0.0.0-20190921001708-c4c64cad1fd0
-	golang.org/x/tools v0.0.0-20200116011002-7042ee646e79 // indirect
+	golang.org/x/tools v0.0.0-20200117012304-6edc0a871e69 // indirect
 	google.golang.org/api v0.15.0
 	google.golang.org/genproto v0.0.0-20200115191322-ca5a22157cba
 	google.golang.org/grpc v1.26.0
diff --git a/go.sum b/go.sum
index eb1fcb9..a45c093 100644
--- a/go.sum
+++ b/go.sum
@@ -487,6 +487,8 @@
 go.chromium.org/luci v0.0.0-20200114225513-9e4906bebf5e/go.mod h1:MIQewVTLvOvc0UioV0JNqTNO/RspKFS0XEeoKrOxsdM=
 go.chromium.org/luci v0.0.0-20200115213038-6a43f0c610a5 h1:PBeawbIjvZO0ZcbTbsyV72lqT0fhPc7QSK75rt2KO/c=
 go.chromium.org/luci v0.0.0-20200115213038-6a43f0c610a5/go.mod h1:MIQewVTLvOvc0UioV0JNqTNO/RspKFS0XEeoKrOxsdM=
+go.chromium.org/luci v0.0.0-20200117005442-eb879596d415 h1:vGgv5U1RLHZrJmOnEhbv0kiJyfJJfk63xGSb4tTc64o=
+go.chromium.org/luci v0.0.0-20200117005442-eb879596d415/go.mod h1:MIQewVTLvOvc0UioV0JNqTNO/RspKFS0XEeoKrOxsdM=
 go.opencensus.io v0.21.0 h1:mU6zScU4U1YAFPHEHYk+3JC4SY7JxgkqS10ZOSyksNg=
 go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU=
 go.opencensus.io v0.22.0 h1:C9hSCOW830chIVkdja34wa6Ky+IzWllkUinR+BtRZd4=
@@ -693,6 +695,8 @@
 golang.org/x/tools v0.0.0-20200114235610-7ae403b6b589/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
 golang.org/x/tools v0.0.0-20200116011002-7042ee646e79 h1:vUYHqXKakw93ZB7hlBqmqr5mOVwQaMWS38qZgBHpdIQ=
 golang.org/x/tools v0.0.0-20200116011002-7042ee646e79/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
+golang.org/x/tools v0.0.0-20200117012304-6edc0a871e69 h1:yBHHx+XZqXJBm6Exke3N7V9gnlsyXxoCPEb1yVenjfk=
+golang.org/x/tools v0.0.0-20200117012304-6edc0a871e69/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=