diff --git a/go.mod b/go.mod
index 6812494704..3925ebb754 100644
--- a/go.mod
+++ b/go.mod
@@ -21,7 +21,7 @@ require (
 	github.com/prometheus/client_golang v1.15.0
 	github.com/prometheus/client_model v0.3.0
 	github.com/pseudomuto/protoc-gen-doc v1.5.1
-	github.com/transparency-dev/merkle v0.0.1
+	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
diff --git a/go.sum b/go.sum
index d31300da0e..a29d1b0fdf 100644
--- a/go.sum
+++ b/go.sum
@@ -1273,6 +1273,8 @@ github.com/tmc/grpc-websocket-proxy v0.0.0-20201229170055-e5319fda7802 h1:uruHq4
 github.com/tmc/grpc-websocket-proxy v0.0.0-20201229170055-e5319fda7802/go.mod h1:ncp9v5uamzpCO7NfCPTXjqaC+bZgJeR0sMTm6dMHP7U=
 github.com/transparency-dev/merkle v0.0.1 h1:T9/9gYB8uZl7VOJIhdwjALeRWlxUxSfDEysjfmx+L9E=
 github.com/transparency-dev/merkle v0.0.1/go.mod h1:B8FIw5LTq6DaULoHsVFRzYIUDkl8yuSwCdZnOZGKL/A=
+github.com/transparency-dev/merkle v0.0.2 h1:Q9nBoQcZcgPamMkGn7ghV8XiTZ/kRxn1yCG81+twTK4=
+github.com/transparency-dev/merkle v0.0.2/go.mod h1:pqSy+OXefQ1EDUVmAJ8MUhHB9TXGuzVAT58PqBoHz1A=
 github.com/tv42/httpunix v0.0.0-20150427012821-b75d8614f926/go.mod h1:9ESjWnEqriFuLhtthL60Sar/7RFoluCcXsuvEwTV5KM=
 github.com/tv42/httpunix v0.0.0-20191220191345-2ba4b9c3382c/go.mod h1:hzIxponao9Kjc7aWznkXaL4U4TWaDSs8zcsY4Ka08nM=
 github.com/ugorji/go v1.1.4/go.mod h1:uQMGLiO92mf5W77hV/PUCpI3pbzQx3CRekS0kk+RGrc=