diff --git a/lockserver/saltolockserver.go b/lockserver/saltolockserver.go
index 49911db..7963558 100644
--- a/lockserver/saltolockserver.go
+++ b/lockserver/saltolockserver.go
@@ -140,7 +140,7 @@ func (lock *SaltoLockServer) waitForAck(conn net.Conn, reader *bufio.Reader, tim
 
 // LockSequence performs the full ENQ/ACK handshake and command exchange
 func (lock *SaltoLockServer) LockSequence() error {
-	const timeout = 10 * time.Second
+	const timeout = 20 * time.Second
 	var (
 		resp    []byte
 		drained = 0 // count of stale frames consumed across waits
@@ -178,7 +178,7 @@ func (lock *SaltoLockServer) LockSequence() error {
 
 	// 5. Now read the *next* STX frame which should be the response to our command.
 	for {
-		conn.SetReadDeadline(time.Now().Add(20 * time.Second))
+		conn.SetReadDeadline(time.Now().Add(40 * time.Second))
 		b, e := reader.ReadByte()
 		if e != nil {
 			return fmt.Errorf("error reading response start: %w", e)
diff --git a/main.go b/main.go
index 14278cd..6a3be16 100644
--- a/main.go
+++ b/main.go
@@ -29,7 +29,7 @@ import (
 )
 
 const (
-	buildVersion   = "1.0.20"
+	buildVersion   = "1.0.21"
 	serviceName    = "hardlink"
 	customLayout   = "2006-01-02 15:04:05 -0700"
 	transactionUrl = "http://127.0.0.1:18181/start-transaction/"
diff --git a/release notes.md b/release notes.md
index 9175d7b..796a4f7 100644
--- a/release notes.md	
+++ b/release notes.md	
@@ -2,6 +2,9 @@
 
 builtVersion is a const in main.go
 
+#### 1.0.21 - 20 October 2025
+increased timeout for Salto lock server connection to 40 seconds
+
 #### 1.0.20 - 06 October 2025
 removed minutes from the start and expiry time in Salto lock command