diff --git a/go.mod b/go.mod
index a6bf76a..2827529 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module github.com/bytemare/opaque
 go 1.16
 
 require (
-	github.com/bytemare/cryptotools v0.0.0-20210220202506-7b38001c07b2
+	github.com/bytemare/cryptotools v0.0.0-20210309005813-f9985b05742f
 	github.com/bytemare/voprf v0.0.0-20210221170502-f0af88d24d16
 	golang.org/x/crypto v0.0.0-20210220033148-5ea612d1eb83 // indirect
 	golang.org/x/sys v0.0.0-20210220050731-9a76102bfb43 // indirect
diff --git a/go.sum b/go.sum
index 2691442..2851a20 100644
--- a/go.sum
+++ b/go.sum
@@ -6,6 +6,8 @@ github.com/armfazh/tozan-ecc v0.1.3/go.mod h1:u25eZC5Z8uJFQxJxGBz1Blfii/7m3DfmwX
 github.com/bytemare/cryptotools v0.0.0-20210217001400-aaae176edbfa/go.mod h1:CKpsDERRG5MbUDJUl6xUDAuL228QndGKNabkx/E+Qug=
 github.com/bytemare/cryptotools v0.0.0-20210220202506-7b38001c07b2 h1:8DJFoDx5wERS2o815PMuHUSOLzAUJQ7XenstsuuU1pE=
 github.com/bytemare/cryptotools v0.0.0-20210220202506-7b38001c07b2/go.mod h1:CKpsDERRG5MbUDJUl6xUDAuL228QndGKNabkx/E+Qug=
+github.com/bytemare/cryptotools v0.0.0-20210309005813-f9985b05742f h1:CXLSVUN4laSSTqbZxZ2gCn5bqO+K8a4fhoru+92SQD0=
+github.com/bytemare/cryptotools v0.0.0-20210309005813-f9985b05742f/go.mod h1:CKpsDERRG5MbUDJUl6xUDAuL228QndGKNabkx/E+Qug=
 github.com/bytemare/voprf v0.0.0-20210218233935-d95eb6bda6a5 h1:HJIEshkFb/eYSp4jvSiuoZAF6d7qyuJ7YhkWnkmbSZU=
 github.com/bytemare/voprf v0.0.0-20210218233935-d95eb6bda6a5/go.mod h1:IXvneXhNv+uODbDxwEZCq6rietIv0/y5H9SfzxkRtGA=
 github.com/bytemare/voprf v0.0.0-20210221170502-f0af88d24d16 h1:XRqQTKj1yBJZZ401bOiw/WDlF5BOfh+7OvPOXlfvfs4=