README                             |  4 ++--
 cmd/cer-selfsigned-example/main.go |  4 ++--
 cmd/streebog256/main.go            |  4 ++--
 cmd/streebog512/main.go            |  4 ++--
 go.mod                             |  2 +-
 gogost.go                          |  2 +-
 gost3410/vko2001.go                |  4 ++--
 gost3410/vko2012.go                |  4 ++--
 gost34112012256/hash.go            |  2 +-
 gost34112012512/hash.go            |  2 +-
 gost341194/hash.go                 |  2 +-
 gost341194/hash_test.go            |  2 +-
 gost341194/pbkdf2_test.go          |  2 +-
 gost341264/cipher.go               |  2 +-
 install.texi                       | 18 +++++++++---------
 mgm/mode_test.go                   |  4 ++--
 mgm/mul128_test.go                 |  2 +-
 mgm/mul64_test.go                  |  2 +-
 news.texi                          |  7 +++++++
 prfplus/gost.go                    |  4 ++--
 www.texi                           |  4 ++--

diff --git a/README b/README
index 8d9f50e9ed7caef96e557e42f9587cc8866ae2231c651ba946d40544cc47dedd..91a5cec6bd392f2cea273247f966354da0f5e5925a8a073addaa9bec577f2155 100644
--- a/README
+++ b/README
@@ -38,8 +38,8 @@
     import (
         "crypto/rand"
         "io"
-        "go.cypherpunks.ru/gogost/v5/gost3410"
-        "go.cypherpunks.ru/gogost/v5/gost34112012256"
+        "go.cypherpunks.su/gogost/v6/gost3410"
+        "go.cypherpunks.su/gogost/v6/gost34112012256"
     )
     func main() {
         data := []byte("data to be signed")
diff --git a/cmd/cer-selfsigned-example/main.go b/cmd/cer-selfsigned-example/main.go
index c07ee202dfaa3cbad6a844018c98f02bef3cf9c539be742e36ebfbf8befe04b7..2d165c9eb24a38ea5078a1e9d09e5511e2b4d98c42624cf15a06ef6f094d7ec5 100644
--- a/cmd/cer-selfsigned-example/main.go
+++ b/cmd/cer-selfsigned-example/main.go
@@ -28,8 +28,8 @@ 	"math/big"
 	"os"
 	"time"
 
-	"crypto/go.cypherpunks.ru/gogost/v5/gost3410"
-	"crypto/go.cypherpunks.ru/gogost/v5/gost34112012256"
+	"crypto/go.cypherpunks.su/gogost/v6/gost3410"
+	"crypto/go.cypherpunks.su/gogost/v6/gost34112012256"
 )
 
 const (
diff --git a/cmd/streebog256/main.go b/cmd/streebog256/main.go
index 45c47e2e7f7dad408b09ec80d53078df63c487dfa30a828fe5a1b2840179ba7c..408919e691d577120871be7e226d1a0c4aee5c35e5a979d015bae4c2b17391b8 100644
--- a/cmd/streebog256/main.go
+++ b/cmd/streebog256/main.go
@@ -23,8 +23,8 @@ 	"fmt"
 	"io"
 	"os"
 
-	"go.cypherpunks.ru/gogost/v5"
-	"go.cypherpunks.ru/gogost/v5/gost34112012256"
+	"go.cypherpunks.su/gogost/v6"
+	"go.cypherpunks.su/gogost/v6/gost34112012256"
 )
 
 var (
diff --git a/cmd/streebog512/main.go b/cmd/streebog512/main.go
index d575946b41005c862d8b2c10271d4a987a6f2d4745520f96b69ba9ef1485c361..47baf0a5114ed08bdd6e528d2101be992db46e9576080192133a515cfeda83de 100644
--- a/cmd/streebog512/main.go
+++ b/cmd/streebog512/main.go
@@ -23,8 +23,8 @@ 	"fmt"
 	"io"
 	"os"
 
-	"go.cypherpunks.ru/gogost/v5"
-	"go.cypherpunks.ru/gogost/v5/gost34112012512"
+	"go.cypherpunks.su/gogost/v6"
+	"go.cypherpunks.su/gogost/v6/gost34112012512"
 )
 
 var (
diff --git a/go.mod b/go.mod
index f892ca64f132883bbf1c2c4534f3a3835907956e831eb3400ff99e59c909b811..e2442d502b0586956a8cc9eca1d058061e00ad7138f3ee4effc954060cd41d05 100644
--- a/go.mod
+++ b/go.mod
@@ -1,4 +1,4 @@
-module go.cypherpunks.ru/gogost/v5
+module go.cypherpunks.su/gogost/v6
 
 go 1.21
 
diff --git a/gogost.go b/gogost.go
index 446385616243507367f9a169bf6864dbc4b745256bcae6635dbfa26a63a18c2e..dc42d4c50d1bfe4cfde03a365d731922d9d382029d750ed9d905b6575056a120 100644
--- a/gogost.go
+++ b/gogost.go
@@ -1,4 +1,4 @@
 // Pure Go GOST cryptographic functions library.
 package gogost
 
-const Version = "5.15.0"
+const Version = "6.0.0"
diff --git a/gost3410/vko2001.go b/gost3410/vko2001.go
index 6b56e69e0810bc51780ac16697cef6ad4f339722a4dd661c7192ace028df4d33..08a999fd8d082f57bef0ac04252573680a5e9997f83633b677be7fe7d8110b4f 100644
--- a/gost3410/vko2001.go
+++ b/gost3410/vko2001.go
@@ -20,8 +20,8 @@ 	"errors"
 	"fmt"
 	"math/big"
 
-	"go.cypherpunks.ru/gogost/v5/gost28147"
-	"go.cypherpunks.ru/gogost/v5/gost341194"
+	"go.cypherpunks.su/gogost/v6/gost28147"
+	"go.cypherpunks.su/gogost/v6/gost341194"
 )
 
 // RFC 4357 VKO GOST R 34.10-2001 key agreement function.
diff --git a/gost3410/vko2012.go b/gost3410/vko2012.go
index f4cc51e35b9f53a13881d606ea09cc04f2dc641b2575ed99a8eae9bbe9ba7681..47f4916e8f6098716dbbab447c76bab9b163f6fa3b2d38335065d5f5d5ce320d 100644
--- a/gost3410/vko2012.go
+++ b/gost3410/vko2012.go
@@ -19,8 +19,8 @@ import (
 	"fmt"
 	"math/big"
 
-	"go.cypherpunks.ru/gogost/v5/gost34112012256"
-	"go.cypherpunks.ru/gogost/v5/gost34112012512"
+	"go.cypherpunks.su/gogost/v6/gost34112012256"
+	"go.cypherpunks.su/gogost/v6/gost34112012512"
 )
 
 // RFC 7836 VKO GOST R 34.10-2012 256-bit key agreement function.
diff --git a/gost34112012256/hash.go b/gost34112012256/hash.go
index 9778b9dbe0abaa986e0bfb40662277a38e7e8d100a0b6aa34ad349b592d96a8c..7607a52ef7816fb1f61079998a84c1fd7204a35550a255ae6824f7a6c5e30b5c 100644
--- a/gost34112012256/hash.go
+++ b/gost34112012256/hash.go
@@ -20,7 +20,7 @@
 import (
 	"hash"
 
-	"go.cypherpunks.ru/gogost/v5/internal/gost34112012"
+	"go.cypherpunks.su/gogost/v6/internal/gost34112012"
 )
 
 const (
diff --git a/gost34112012512/hash.go b/gost34112012512/hash.go
index 69a5ec99e10f116c7738fd7b0ad71f70d743b06d765df2cd929aae26b1b851e4..deb5e64e718d15989659b8813e51148f7a685eab7c86e44358c649a0f7fb5cad 100644
--- a/gost34112012512/hash.go
+++ b/gost34112012512/hash.go
@@ -20,7 +20,7 @@
 import (
 	"hash"
 
-	"go.cypherpunks.ru/gogost/v5/internal/gost34112012"
+	"go.cypherpunks.su/gogost/v6/internal/gost34112012"
 )
 
 const (
diff --git a/gost341194/hash.go b/gost341194/hash.go
index cd82b0f15ca52e0cf16bbc53cf425a6abcce4e6b107a77f33c9bb4c301d8f37f..200f73d83bcd7d879698c6605b8cb16bef0f550e2dcc12cab7a4fed00fee915b 100644
--- a/gost341194/hash.go
+++ b/gost341194/hash.go
@@ -22,7 +22,7 @@ 	"crypto/subtle"
 	"encoding/binary"
 	"math/big"
 
-	"go.cypherpunks.ru/gogost/v5/gost28147"
+	"go.cypherpunks.su/gogost/v6/gost28147"
 )
 
 const (
diff --git a/gost341194/hash_test.go b/gost341194/hash_test.go
index 1fb32a596b4ab0acf4041077516074306fa9029e4c98bbc15d062fde6f25b9cd..29e2b011df7dc892fb71698e048825875368f4045f725b506ddea0b9ae858e98 100644
--- a/gost341194/hash_test.go
+++ b/gost341194/hash_test.go
@@ -22,7 +22,7 @@ 	"hash"
 	"testing"
 	"testing/quick"
 
-	"go.cypherpunks.ru/gogost/v5/gost28147"
+	"go.cypherpunks.su/gogost/v6/gost28147"
 )
 
 func TestHashInterface(t *testing.T) {
diff --git a/gost341194/pbkdf2_test.go b/gost341194/pbkdf2_test.go
index 6e0c78c75e760ffb66f2760de589a4a3ec449fe831c67873293675df234d57ae..295ee273d8f5f42e1b27e5876b53bb4b31634f004e50baf271a39f3d0ff5febe 100644
--- a/gost341194/pbkdf2_test.go
+++ b/gost341194/pbkdf2_test.go
@@ -20,7 +20,7 @@ 	"bytes"
 	"hash"
 	"testing"
 
-	"go.cypherpunks.ru/gogost/v5/gost28147"
+	"go.cypherpunks.su/gogost/v6/gost28147"
 	"golang.org/x/crypto/pbkdf2"
 )
 
diff --git a/gost341264/cipher.go b/gost341264/cipher.go
index a23d141b05f3620cf0410fc021af48bfdf6a643d9c0f9911767b9ff46e8016a6..7a226936ccb7891196ec0c95c806fe40cdee615526d65d62b959eb308e570513 100644
--- a/gost341264/cipher.go
+++ b/gost341264/cipher.go
@@ -17,7 +17,7 @@ // GOST 34.12-2015 64-bit (Магма (Magma)) block cipher.
 package gost341264
 
 import (
-	"go.cypherpunks.ru/gogost/v5/gost28147"
+	"go.cypherpunks.su/gogost/v6/gost28147"
 )
 
 const (
diff --git a/install.texi b/install.texi
index 344b90042ea695ae2bb640a980192fc5dea67c50012ca8a2337c1f4c2cd80ae8..9b5f6ea3cc995fe8806f91fc23e38a620199360a7f01e3380d481322934fb50e 100644
--- a/install.texi
+++ b/install.texi
@@ -21,8 +21,8 @@ And then you can include its source code in your project for example
 like this:
 
 @example
-$ mkdir -p myproj/vendor/go.cypherpunks.ru/gogost
-$ mv gogost-@value{VERSION} myproj/vendor/go.cypherpunks.ru/gogost/v5
+$ mkdir -p myproj/vendor/go.cypherpunks.su/gogost
+$ mv gogost-@value{VERSION} myproj/vendor/go.cypherpunks.su/gogost/v6
 $ cd myproj
 $ cat >main.go <<EOF
 package main
@@ -31,7 +31,7 @@ import (
     "encoding/hex"
     "fmt"
 
-    "go.cypherpunks.ru/gogost/v5/gost34112012256"
+    "go.cypherpunks.su/gogost/v6/gost34112012256"
 )
 
 func main() @{
@@ -50,18 +50,18 @@ GoGOST is also @command{go get}-able. For example to install
 @command{streebog256} utility:
 
 @example
-$ go install go.cypherpunks.ru/gogost/v5/cmd/streebog256@@latest
+$ go install go.cypherpunks.su/gogost/v6/cmd/streebog256@@latest
 @end example
 
-Aware that @code{go.cypherpunks.ru} uses
+Aware that @code{go.cypherpunks.su} uses
 @url{//www.ca.cypherpunks.ru, ca.cypherpunks.ru} X.509 certificate authority.
 
 @itemize
 
 @item Go's default @code{proxy.golang.org} and @code{sum.golang.org}
-services won't be able to verify @code{go.cypherpunks.ru}'s TLS
+services won't be able to verify @code{go.cypherpunks.su}'s TLS
 authenticity, because there are no common trust anchors. You can skip
-their usage by setting @env{$GOPRIVATE=go.cypherpunks.ru}.
+their usage by setting @env{$GOPRIVATE=go.cypherpunks.su}.
 
 @item You can (temporarily) override CA bundle during installation with
 @env{$SSL_CERT_FILE} environment variable.
@@ -70,8 +70,8 @@ @item You can unpack tarball somewhere and use @code{replace} command in
 your local @file{go.mod}:
 
 @example
-require go.cypherpunks.ru/gogost/v5 v@value{VERSION}
-replace go.cypherpunks.ru/gogost/v5 => /path/to/gogost-@value{VERSION}
+require go.cypherpunks.su/gogost/v6 v@value{VERSION}
+replace go.cypherpunks.su/gogost/v6 => /path/to/gogost-@value{VERSION}
 @end example
 
 @end itemize
diff --git a/mgm/mode_test.go b/mgm/mode_test.go
index ecf0b372f0822ed9a803fe480a0df0b945cda825b73785cc4a6af609ef425444..456d731839ec493abaa2bc8c1c766cf98441a6075d5db350e1c8b7df24b83613 100644
--- a/mgm/mode_test.go
+++ b/mgm/mode_test.go
@@ -23,8 +23,8 @@ 	"io"
 	"testing"
 	"testing/quick"
 
-	"go.cypherpunks.ru/gogost/v5/gost3412128"
-	"go.cypherpunks.ru/gogost/v5/gost341264"
+	"go.cypherpunks.su/gogost/v6/gost3412128"
+	"go.cypherpunks.su/gogost/v6/gost341264"
 )
 
 func TestVector(t *testing.T) {
diff --git a/mgm/mul128_test.go b/mgm/mul128_test.go
index 1d41ac2784aebed87e04aac88620e638cb9ed272432d804af2387352792f399b..f87f12b02cf935c4bbbb4136e996c3f0c4a8a82716068cb55b3eb28c04fa0192 100644
--- a/mgm/mul128_test.go
+++ b/mgm/mul128_test.go
@@ -19,7 +19,7 @@ import (
 	"crypto/rand"
 	"testing"
 
-	"go.cypherpunks.ru/gogost/v5/gost3412128"
+	"go.cypherpunks.su/gogost/v6/gost3412128"
 )
 
 func BenchmarkMul128(b *testing.B) {
diff --git a/mgm/mul64_test.go b/mgm/mul64_test.go
index add241768a7a20ffe34426393bb778aa4faa8bb437ddfd86939b127d08be2b80..7cedc744f363ac0ef34b33310a85d58c2ddc6db4fd3b0abd24c8c1ca1f7cd4d5 100644
--- a/mgm/mul64_test.go
+++ b/mgm/mul64_test.go
@@ -19,7 +19,7 @@ import (
 	"crypto/rand"
 	"testing"
 
-	"go.cypherpunks.ru/gogost/v5/gost341264"
+	"go.cypherpunks.su/gogost/v6/gost341264"
 )
 
 func BenchmarkMul64(b *testing.B) {
diff --git a/news.texi b/news.texi
index e048a483e246e1b4959d748ad3ad25948cae25a607951a00bc1319324528689d..1afc0563e2ece7ed4a363b3c45faec8063b4beaee733c9431b340a9420933a69 100644
--- a/news.texi
+++ b/news.texi
@@ -3,6 +3,13 @@ @unnumbered News
 
 @table @strong
 
+@anchor{Release 6.0.0}
+@item 6.0.0
+Changed namespace because of domain expiration:
+@verbatim
+go.cypherpunks.ru/gogost/v5 -> go.cypherpunks.su/gogost/v6
+@end verbatim
+
 @anchor{Release 5.15.0}
 @item 5.15.0
 Optimised Streebog implementation with precalculated tables.
diff --git a/prfplus/gost.go b/prfplus/gost.go
index f27e93867f71335e3c75f07580d2a4ae9e8d9e3bde7de64eb3587f28eaaa0a6b..fb2ab84dc74d9da60aafc4b0bf511f50aedec15b34519485cbafc46c6f552e30 100644
--- a/prfplus/gost.go
+++ b/prfplus/gost.go
@@ -20,8 +20,8 @@ import (
 	"crypto/hmac"
 	"hash"
 
-	"go.cypherpunks.ru/gogost/v5/gost34112012256"
-	"go.cypherpunks.ru/gogost/v5/gost34112012512"
+	"go.cypherpunks.su/gogost/v6/gost34112012256"
+	"go.cypherpunks.su/gogost/v6/gost34112012512"
 )
 
 type PRFIPsecPRFPlusGOSTR34112012 struct{ h hash.Hash }
diff --git a/www.texi b/www.texi
index 39054d9a6592a11577134499e6e40c9ced23f3142893558bf086e5ddfbcb4199..235b45541cf26845a3b5bff26945e34f8d1b2098e86e3631e2acc41e4a8c9d4d 100644
--- a/www.texi
+++ b/www.texi
@@ -66,8 +66,8 @@ @verbatim
 import (
     "crypto/rand"
     "io"
-    "go.cypherpunks.ru/gogost/v5/gost3410"
-    "go.cypherpunks.ru/gogost/v5/gost34112012256"
+    "go.cypherpunks.su/gogost/v6/gost3410"
+    "go.cypherpunks.su/gogost/v6/gost34112012256"
 )
 func main() {
     data := []byte("data to be signed")