diff --git a/Makefile b/Makefile
index df3a936..e732545 100644
--- a/Makefile
+++ b/Makefile
@@ -9,7 +9,7 @@ LINT_BIN := $(GO_BIN)/golangci-lint
 GOACC_BIN := $(GO_BIN)/go-acc
 
 LINT_COMMIT := v1.18.0
-GOACC_COMMIT := ddc355013f90fea78d83d3a6c71f1d37ac07ecd5
+GOACC_COMMIT := 80342ae2e0fcf265e99e76bcc4efd022c7c3811b
 
 DEPGET := cd /tmp && GO111MODULE=on go get -v
 GOBUILD := GO111MODULE=on go build -v
diff --git a/waddrmgr/scoped_manager.go b/waddrmgr/scoped_manager.go
index 0d0d70f..ee010f6 100644
--- a/waddrmgr/scoped_manager.go
+++ b/waddrmgr/scoped_manager.go
@@ -43,6 +43,11 @@ const (
 	// HDVersionTestNetBIP0084 is the HDVersion for BIP-0084 on the test
 	// network.
 	HDVersionTestNetBIP0084 HDVersion = 0x045f1cf6 // vpub
+
+	// HDVersionSimNetBIP0044 is the HDVersion for BIP-0044 on the
+	// simulation test network. There aren't any other versions defined for
+	// the simulation test network.
+	HDVersionSimNetBIP0044 HDVersion = 0x0420bd3a // spub
 )
 
 // DerivationPath represents a derivation path from a particular key manager's
@@ -2238,6 +2243,21 @@ func (s *ScopedKeyManager) cloneKeyWithVersion(key *hdkeychain.ExtendedKey) (
 			return nil, fmt.Errorf("unsupported scope %v", s.scope)
 		}
 
+	case wire.SimNet:
+		switch s.scope {
+		case KeyScopeBIP0044:
+			version = HDVersionSimNetBIP0044
+		// We use the mainnet versions for simnet keys when the keys
+		// belong to a key scope which simnet doesn't have a defined
+		// version for.
+		case KeyScopeBIP0049Plus:
+			version = HDVersionMainNetBIP0049
+		case KeyScopeBIP0084:
+			version = HDVersionMainNetBIP0084
+		default:
+			return nil, fmt.Errorf("unsupported scope %v", s.scope)
+		}
+
 	default:
 		return nil, fmt.Errorf("unsupported net %v", net)
 	}
diff --git a/wallet/import.go b/wallet/import.go
index 0958434..42bfe1c 100644
--- a/wallet/import.go
+++ b/wallet/import.go
@@ -37,7 +37,9 @@ func keyScopeFromPubKey(pubKey *hdkeychain.ExtendedKey,
 	// force the standard BIP-0049 derivation scheme (nested witness pubkeys
 	// everywhere), while a witness address type will force the standard
 	// BIP-0084 derivation scheme.
-	case waddrmgr.HDVersionMainNetBIP0044, waddrmgr.HDVersionTestNetBIP0044:
+	case waddrmgr.HDVersionMainNetBIP0044, waddrmgr.HDVersionTestNetBIP0044,
+		waddrmgr.HDVersionSimNetBIP0044:
+
 		if addrType == nil {
 			return waddrmgr.KeyScope{}, nil, errors.New("address " +
 				"type must be specified for account public " +
@@ -111,6 +113,15 @@ func (w *Wallet) isPubKeyForNet(pubKey *hdkeychain.ExtendedKey) bool {
 			version == waddrmgr.HDVersionTestNetBIP0049 ||
 			version == waddrmgr.HDVersionTestNetBIP0084
 
+	// For simnet, we'll also allow the mainnet versions since simnet
+	// doesn't have defined versions for some of our key scopes, and the
+	// mainnet versions are usually used as the default regardless of the
+	// network/key scope.
+	case wire.SimNet:
+		return version == waddrmgr.HDVersionSimNetBIP0044 ||
+			version == waddrmgr.HDVersionMainNetBIP0049 ||
+			version == waddrmgr.HDVersionMainNetBIP0084
+
 	default:
 		return false
 	}