diff --git a/go.mod b/go.mod
index 73fcb65..ffdb42e 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module github.com/tillitis/tkeyclient
 go 1.23.0
 
 require (
-	github.com/ccoveille/go-safecast v1.1.0
+	github.com/ccoveille/go-safecast/v2 v2.0.0
 	go.bug.st/serial v1.6.2
 	golang.org/x/crypto v0.40.0
 )
diff --git a/go.sum b/go.sum
index 480f084..dbbb24a 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,5 @@
-github.com/ccoveille/go-safecast v1.1.0 h1:iHKNWaZm+OznO7Eh6EljXPjGfGQsSfa6/sxPlIEKO+g=
-github.com/ccoveille/go-safecast v1.1.0/go.mod h1:QqwNjxQ7DAqY0C721OIO9InMk9zCwcsO7tnRuHytad8=
+github.com/ccoveille/go-safecast/v2 v2.0.0 h1:+5eyITXAUj3wMjad6cRVJKGnC7vDS55zk0INzJagub0=
+github.com/ccoveille/go-safecast/v2 v2.0.0/go.mod h1:JIYA4CAR33blIDuE6fSwCp2sz1oOBahXnvmdBhOAABs=
 github.com/creack/goselect v0.1.2 h1:2DNy14+JPjRBgPzAd1thbQp4BSIihxcBf0IXhQXDRa0=
 github.com/creack/goselect v0.1.2/go.mod h1:a/NhLweNvqIYMuxcMOuWY516Cimucms3DglDzQP3hKY=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
diff --git a/tkeyclient.go b/tkeyclient.go
index fefdcc6..f68d896 100644
--- a/tkeyclient.go
+++ b/tkeyclient.go
@@ -35,7 +35,7 @@ import (
 	"os"
 	"time"
 
-	"github.com/ccoveille/go-safecast"
+	"github.com/ccoveille/go-safecast/v2"
 	"go.bug.st/serial"
 	"golang.org/x/crypto/blake2s"
 )
@@ -218,22 +218,22 @@ func (u *UDI) Unpack(raw []byte) error {
 	var err error
 
 	vpr := binary.LittleEndian.Uint32(raw[0:4])
-	u.Unnamed, err = safecast.ToUint8((vpr >> 28) & 0xf)
+	u.Unnamed, err = safecast.Convert[uint8]((vpr >> 28) & 0xf)
 	if err != nil {
 		return fmt.Errorf("%w", err)
 	}
 
-	u.VendorID, err = safecast.ToUint16((vpr >> 12) & 0xffff)
+	u.VendorID, err = safecast.Convert[uint16]((vpr >> 12) & 0xffff)
 	if err != nil {
 		return fmt.Errorf("%w", err)
 	}
 
-	u.ProductID, err = safecast.ToUint8((vpr >> 6) & 0x3f)
+	u.ProductID, err = safecast.Convert[uint8]((vpr >> 6) & 0x3f)
 	if err != nil {
 		return fmt.Errorf("%w", err)
 	}
 
-	u.ProductRevision, err = safecast.ToUint8(vpr & 0x3f)
+	u.ProductRevision, err = safecast.Convert[uint8](vpr & 0x3f)
 	if err != nil {
 		return fmt.Errorf("%w", err)
 	}