diff --git a/go.mod b/go.mod
index 3276fe3aba..49d3b47bdd 100644
--- a/go.mod
+++ b/go.mod
@@ -22,9 +22,9 @@ require (
 	github.com/prometheus/client_model v0.4.0
 	github.com/pseudomuto/protoc-gen-doc v1.5.1
 	github.com/transparency-dev/merkle v0.0.2
-	go.etcd.io/etcd/client/v3 v3.5.8
-	go.etcd.io/etcd/etcdctl/v3 v3.5.8
-	go.etcd.io/etcd/server/v3 v3.5.8
+	go.etcd.io/etcd/client/v3 v3.5.9
+	go.etcd.io/etcd/etcdctl/v3 v3.5.9
+	go.etcd.io/etcd/server/v3 v3.5.9
 	go.etcd.io/etcd/v3 v3.5.8
 	go.opencensus.io v0.24.0
 	golang.org/x/crypto v0.8.0
@@ -133,12 +133,12 @@ require (
 	github.com/xanzy/ssh-agent v0.2.1 // indirect
 	github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2 // indirect
 	go.etcd.io/bbolt v1.3.7 // indirect
-	go.etcd.io/etcd/api/v3 v3.5.8 // indirect
-	go.etcd.io/etcd/client/pkg/v3 v3.5.8 // indirect
-	go.etcd.io/etcd/client/v2 v2.305.8 // indirect
-	go.etcd.io/etcd/etcdutl/v3 v3.5.8 // indirect
-	go.etcd.io/etcd/pkg/v3 v3.5.8 // indirect
-	go.etcd.io/etcd/raft/v3 v3.5.8 // indirect
+	go.etcd.io/etcd/api/v3 v3.5.9 // indirect
+	go.etcd.io/etcd/client/pkg/v3 v3.5.9 // indirect
+	go.etcd.io/etcd/client/v2 v2.305.9 // indirect
+	go.etcd.io/etcd/etcdutl/v3 v3.5.9 // indirect
+	go.etcd.io/etcd/pkg/v3 v3.5.9 // indirect
+	go.etcd.io/etcd/raft/v3 v3.5.9 // indirect
 	go.etcd.io/etcd/tests/v3 v3.5.8 // indirect
 	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.28.0 // indirect
 	go.opentelemetry.io/otel v1.6.1 // indirect
diff --git a/go.sum b/go.sum
index fe03229958..78a03053d8 100644
--- a/go.sum
+++ b/go.sum
@@ -1324,30 +1324,30 @@ go.etcd.io/bbolt v1.3.7 h1:j+zJOnnEjF/kyHlDDgGnVL/AIqIJPq8UoB2GSNfkUfQ=
 go.etcd.io/bbolt v1.3.7/go.mod h1:N9Mkw9X8x5fupy0IKsmuqVtoGDyxsaDlbk4Rd05IAQw=
 go.etcd.io/etcd v0.5.0-alpha.5.0.20200910180754-dd1b699fc489/go.mod h1:yVHk9ub3CSBatqGNg7GRmsnfLWtoW60w4eDYfh7vHDg=
 go.etcd.io/etcd/api/v3 v3.5.0/go.mod h1:cbVKeC6lCfl7j/8jBhAK6aIYO9XOjdptoxU/nLQcPvs=
-go.etcd.io/etcd/api/v3 v3.5.8 h1:Zf44zJszoU7zRV0X/nStPenegNXoFDWcB/MwrJbA+L4=
-go.etcd.io/etcd/api/v3 v3.5.8/go.mod h1:uyAal843mC8uUVSLWz6eHa/d971iDGnCRpmKd2Z+X8k=
+go.etcd.io/etcd/api/v3 v3.5.9 h1:4wSsluwyTbGGmyjJktOf3wFQoTBIURXHnq9n/G/JQHs=
+go.etcd.io/etcd/api/v3 v3.5.9/go.mod h1:uyAal843mC8uUVSLWz6eHa/d971iDGnCRpmKd2Z+X8k=
 go.etcd.io/etcd/client/pkg/v3 v3.5.0/go.mod h1:IJHfcCEKxYu1Os13ZdwCwIUTUVGYTSAM3YSwc9/Ac1g=
-go.etcd.io/etcd/client/pkg/v3 v3.5.8 h1:tPp9YRn/UBFAHdhOQUII9eUs7aOK35eulpMhX4YBd+M=
-go.etcd.io/etcd/client/pkg/v3 v3.5.8/go.mod h1:y+CzeSmkMpWN2Jyu1npecjB9BBnABxGM4pN8cGuJeL4=
+go.etcd.io/etcd/client/pkg/v3 v3.5.9 h1:oidDC4+YEuSIQbsR94rY9gur91UPL6DnxDCIYd2IGsE=
+go.etcd.io/etcd/client/pkg/v3 v3.5.9/go.mod h1:y+CzeSmkMpWN2Jyu1npecjB9BBnABxGM4pN8cGuJeL4=
 go.etcd.io/etcd/client/v2 v2.305.0/go.mod h1:h9puh54ZTgAKtEbut2oe9P4L/oqKCVB6xsXlzd7alYQ=
-go.etcd.io/etcd/client/v2 v2.305.8 h1:IGp9Ozt8awy3qRTXSIYJd/o/cr4oUyrm9MF1RJ2dr/c=
-go.etcd.io/etcd/client/v2 v2.305.8/go.mod h1:ZlAsxDK5/10I6xVHhFo9zinCMr/DDLKFetDDXlzKwqE=
+go.etcd.io/etcd/client/v2 v2.305.9 h1:YZ2OLi0OvR0H75AcgSUajjd5uqKDKocQUqROTG11jIo=
+go.etcd.io/etcd/client/v2 v2.305.9/go.mod h1:0NBdNx9wbxtEQLwAQtrDHwx58m02vXpDcgSYI2seohQ=
 go.etcd.io/etcd/client/v3 v3.5.0/go.mod h1:AIKXXVX/DQXtfTEqBryiLTUXwON+GuvO6Z7lLS/oTh0=
-go.etcd.io/etcd/client/v3 v3.5.8 h1:B6ngTKZSWWowHEoaucOKHQR/AtZKaoHLiUpWxOLG4l4=
-go.etcd.io/etcd/client/v3 v3.5.8/go.mod h1:idZYIPVkttBJBiRigkB5EM0MmEyx8jcl18zCV3F5noc=
-go.etcd.io/etcd/etcdctl/v3 v3.5.8 h1:Hc+yvk0e1VOKSzNNA0ZyNqzOQf/jrAZarx/IFd6KcPk=
-go.etcd.io/etcd/etcdctl/v3 v3.5.8/go.mod h1:ur5LRmFUo1Rcnwe8i71YVtH5y4RjsW/6YNmTQlz1N8E=
-go.etcd.io/etcd/etcdutl/v3 v3.5.8 h1:KTVdvP+9unMtYifGPcIQRMOhsbhek78W8DiCoAbYbQE=
-go.etcd.io/etcd/etcdutl/v3 v3.5.8/go.mod h1:ttDqxIhpW9PqQdw+jJhUpLF+f37TnnSRJpkJSkCikts=
+go.etcd.io/etcd/client/v3 v3.5.9 h1:r5xghnU7CwbUxD/fbUtRyJGaYNfDun8sp/gTr1hew6E=
+go.etcd.io/etcd/client/v3 v3.5.9/go.mod h1:i/Eo5LrZ5IKqpbtpPDuaUnDOUv471oDg8cjQaUr2MbA=
+go.etcd.io/etcd/etcdctl/v3 v3.5.9 h1:ndt0K3z0Gkq+Fik9eVaDqnWakuJplgkza5xEQygjN1U=
+go.etcd.io/etcd/etcdctl/v3 v3.5.9/go.mod h1:dKCkFEqF8RiuQAQ25pCKB6ycGPyE9ipsthKFXmY9/7M=
+go.etcd.io/etcd/etcdutl/v3 v3.5.9 h1:PD63eycMIKtVjDeUBvroA5dFHPsBnjixR8T9mAbB6ww=
+go.etcd.io/etcd/etcdutl/v3 v3.5.9/go.mod h1:rQ6z0HAAxVgYwBTWJbs3ei8gMYiNQzF51lQ2kI+6LZU=
 go.etcd.io/etcd/pkg/v3 v3.5.0/go.mod h1:UzJGatBQ1lXChBkQF0AuAtkRQMYnHubxAEYIrC3MSsE=
-go.etcd.io/etcd/pkg/v3 v3.5.8 h1:hz6w5Cb4p7dbt642m8Y35Ts9yWPWUCymc3v4Z/aiGEU=
-go.etcd.io/etcd/pkg/v3 v3.5.8/go.mod h1:C17MJkZHJIyJV+wWWx6Jz6YS6BfdkOnUkSwT9uuEO7s=
+go.etcd.io/etcd/pkg/v3 v3.5.9 h1:6R2jg/aWd/zB9+9JxmijDKStGJAPFsX3e6BeJkMi6eQ=
+go.etcd.io/etcd/pkg/v3 v3.5.9/go.mod h1:BZl0SAShQFk0IpLWR78T/+pyt8AruMHhTNNX73hkNVY=
 go.etcd.io/etcd/raft/v3 v3.5.0/go.mod h1:UFOHSIvO/nKwd4lhkwabrTD3cqW5yVyYYf/KlD00Szc=
-go.etcd.io/etcd/raft/v3 v3.5.8 h1:wM4IAfiY1+vrCAkUicIOzkyjpV9MawnAul2KvxeMgy4=
-go.etcd.io/etcd/raft/v3 v3.5.8/go.mod h1:W6P5WxtOMfYNdLSEJX3vc8Pg6LOt+ewI9UCFKcnIexA=
+go.etcd.io/etcd/raft/v3 v3.5.9 h1:ZZ1GIHoUlHsn0QVqiRysAm3/81Xx7+i2d7nSdWxlOiI=
+go.etcd.io/etcd/raft/v3 v3.5.9/go.mod h1:WnFkqzFdZua4LVlVXQEGhmooLeyS7mqzS4Pf4BCVqXg=
 go.etcd.io/etcd/server/v3 v3.5.0/go.mod h1:3Ah5ruV+M+7RZr0+Y/5mNLwC+eQlni+mQmOVdCRJoS4=
-go.etcd.io/etcd/server/v3 v3.5.8 h1:eK9fU6Pd6IJD1k0u4zAq1NZsSsEOOimlP3kIkpcQrho=
-go.etcd.io/etcd/server/v3 v3.5.8/go.mod h1:1y2ahPOrlE4pzVV5+rBCDur7QQcEP0MNUPO2dyzwjso=
+go.etcd.io/etcd/server/v3 v3.5.9 h1:vomEmmxeztLtS5OEH7d0hBAg4cjVIu9wXuNzUZx2ZA0=
+go.etcd.io/etcd/server/v3 v3.5.9/go.mod h1:GgI1fQClQCFIzuVjlvdbMxNbnISt90gdfYyqiAIt65g=
 go.etcd.io/etcd/tests/v3 v3.5.8 h1:jrWlrEJfFuvI9nqMGFZNLc+OCdtyBdw8mSfp8ZwLIWs=
 go.etcd.io/etcd/tests/v3 v3.5.8/go.mod h1:KFgEgZWwXZILKsOX3f3VyGmUHQgbG/yM9edQNTkXsdE=
 go.etcd.io/etcd/v3 v3.5.8 h1:AQF+i8f8jLeli9Cmf6SIs3KNryFPnzlIzI7weyK784g=