diff --git a/go.mod b/go.mod
index 2d6595936..044bae542 100644
--- a/go.mod
+++ b/go.mod
@@ -17,7 +17,7 @@ require (
 	github.com/google/trillian v1.3.10
 	github.com/grpc-ecosystem/go-grpc-middleware v1.2.0
 	github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0
-	github.com/grpc-ecosystem/grpc-gateway v1.14.6
+	github.com/grpc-ecosystem/grpc-gateway v1.15.2
 	github.com/kr/pretty v0.1.0
 	github.com/kylelemons/godebug v1.1.0
 	github.com/pelletier/go-toml v1.6.0 // indirect
@@ -34,7 +34,7 @@ require (
 	golang.org/x/time v0.0.0-20200416051211-89c76fbcd5d1
 	google.golang.org/api v0.29.0
 	google.golang.org/genproto v0.0.0-20200626011028-ee7919e894b5
-	google.golang.org/grpc v1.29.1
+	google.golang.org/grpc v1.32.0
 	google.golang.org/protobuf v1.25.0
 	gopkg.in/yaml.v2 v2.2.8 // indirect
 )
diff --git a/go.sum b/go.sum
index 56ff4ed61..41766a97c 100644
--- a/go.sum
+++ b/go.sum
@@ -350,6 +350,7 @@ github.com/grpc-ecosystem/grpc-gateway v1.12.1 h1:zCy2xE9ablevUOrUZc3Dl72Dt+ya2F
 github.com/grpc-ecosystem/grpc-gateway v1.12.1/go.mod h1:8XEsbTttt/W+VvjtQhLACqCisSPWTxCZ7sBRjU6iH9c=
 github.com/grpc-ecosystem/grpc-gateway v1.14.6 h1:8ERzHx8aj1Sc47mu9n/AksaKCSWrMchFtkdrS4BIj5o=
 github.com/grpc-ecosystem/grpc-gateway v1.14.6/go.mod h1:zdiPV4Yse/1gnckTHtghG4GkDEdKCRJduHpTxT3/jcw=
+github.com/grpc-ecosystem/grpc-gateway v1.15.2/go.mod h1:vO11I9oWA+KsxmfFQPhLnnIb1VDE24M+pdxZFiuZcA8=
 github.com/hashicorp/consul/api v1.1.0/go.mod h1:VmuI/Lkw1nC05EYQWNKwWGbkg+FbDBtguAZLlVdkD9Q=
 github.com/hashicorp/consul/sdk v0.1.1/go.mod h1:VKf9jXwCTEY1QZP2MOLRhb5i/I/ssyNV1vwHyQBF0x8=
 github.com/hashicorp/errwrap v1.0.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
@@ -978,6 +979,7 @@ google.golang.org/grpc v1.28.0/go.mod h1:rpkK4SK4GF4Ach/+MFLZUBavHOvF2JJB5uozKKa
 google.golang.org/grpc v1.29.0/go.mod h1:itym6AZVZYACWQqET3MqgPpjcuV5QH3BxFS3IjizoKk=
 google.golang.org/grpc v1.29.1 h1:EC2SB8S04d2r73uptxphDSUG+kTKVgjRPF+N3xpxRB4=
 google.golang.org/grpc v1.29.1/go.mod h1:itym6AZVZYACWQqET3MqgPpjcuV5QH3BxFS3IjizoKk=
+google.golang.org/grpc v1.32.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=