diff --git a/docs/README.md b/docs/README.md
index 0e69fdb6..f36dbce4 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -215,7 +215,7 @@ The following versioned modules are provided by dcrd repository:
   concurrency safe Decred network address manager
 * [connmgr/v3](https://github.com/decred/dcrd/tree/master/connmgr) - Implements
   a generic Decred network connection manager
-* [hdkeychain/v2](https://github.com/decred/dcrd/tree/master/hdkeychain) -
+* [hdkeychain/v3](https://github.com/decred/dcrd/tree/master/hdkeychain) -
   Provides an API for working with  Decred hierarchical deterministic extended
   keys
 * [gcs](https://github.com/decred/dcrd/tree/master/gcs) - Provides an API for
diff --git a/docs/assets/module_hierarchy.gv b/docs/assets/module_hierarchy.gv
index 3a1eb0d5..d7817af6 100644
--- a/docs/assets/module_hierarchy.gv
+++ b/docs/assets/module_hierarchy.gv
@@ -15,7 +15,7 @@ digraph {
 	secp256k1 [label="dcrec/secp256k1/v3" fillcolor=mediumvioletred]
 	dcrutil [label="dcrutil/v3" fillcolor=burlywood]
 	database [label="database/v2" fillcolor=dodgerblue]
-	hdkeychain [label="hdkeychain/v2" fillcolor=deepskyblue]
+	hdkeychain [label="hdkeychain/v3" fillcolor=deepskyblue]
 	txscript [label="txscript/v3" fillcolor=mediumspringgreen]
 	stake [label="blockchain/stake/v2" fillcolor=bisque]
 	standalone [label="blockchain/standalone" fillcolor=firebrick4]
diff --git a/docs/assets/module_hierarchy.svg b/docs/assets/module_hierarchy.svg
index 4c6695c5..9a1d5438 100644
--- a/docs/assets/module_hierarchy.svg
+++ b/docs/assets/module_hierarchy.svg
@@ -173,7 +173,7 @@
 <!-- hdkeychain -->
 <g id="node14" class="node"><title>hdkeychain</title>
 <path fill="deepskyblue" stroke="black" d="M421,-108C421,-108 348,-108 348,-108 342,-108 336,-102 336,-96 336,-96 336,-84 336,-84 336,-78 342,-72 348,-72 348,-72 421,-72 421,-72 427,-72 433,-78 433,-84 433,-84 433,-96 433,-96 433,-102 427,-108 421,-108"/>
-<text text-anchor="middle" x="384.5" y="-86.3" font-family="Times New Roman,serif" font-size="14.00">hdkeychain/v2</text>
+<text text-anchor="middle" x="384.5" y="-86.3" font-family="Times New Roman,serif" font-size="14.00">hdkeychain/v3</text>
 </g>
 <!-- dcrutil&#45;&gt;hdkeychain -->
 <g id="edge12" class="edge"><title>dcrutil&#45;&gt;hdkeychain</title>