gogost.go           | 2 +-
 gost3410/private.go | 2 +-
 news.texi           | 5 +++++

diff --git a/gogost.go b/gogost.go
index 4a87144b0cfc78e480201f1f6e14405e0b212ab5d776a7714aebb56517c8c90f..569f366cc598cda902a0e421bf6a624d97d4eb8085940fccc1e3028544254903 100644
--- a/gogost.go
+++ b/gogost.go
@@ -1,4 +1,4 @@
 // Pure Go GOST cryptographic functions library.
 package gogost
 
-const Version = "5.4.0"
+const Version = "5.5.0"
diff --git a/gost3410/private.go b/gost3410/private.go
index d34deeb4c11194d8c694c3f097c336aa1ca82b6a177e0ab5b966e25fe69f7d71..92088a742ccf47c74078ea39bbb8c5e7e299984df8f00afbb74c5f698948b2db 100644
--- a/gost3410/private.go
+++ b/gost3410/private.go
@@ -41,7 +41,7 @@ 	k := bytes2big(key)
 	if k.Cmp(zero) == 0 {
 		return nil, errors.New("gogost/gost3410: zero private key")
 	}
-	return &PrivateKey{curve, k}, nil
+	return &PrivateKey{curve, k.Mod(k, curve.Q)}, nil
 }
 
 func GenPrivateKey(curve *Curve, rand io.Reader) (*PrivateKey, error) {
diff --git a/news.texi b/news.texi
index 64e191ecf95b0f0bcac89940cc9c3f79f80c3e8cd1d753ff4ea86dbfdd0465f2..bb63cfe47c3e7f64c2573f21169119d58561c09ecdb5f57621a8c51dea5fce8b 100644
--- a/news.texi
+++ b/news.texi
@@ -3,6 +3,11 @@ @unnumbered News
 
 @table @strong
 
+@anchor{Release 5.5.0}
+@item 5.5.0
+    @code{gost3410.PrivateKey} is in @code{gost3410.Curve.Q} now. That
+    makes them more friendly with some implementations.
+
 @anchor{Release 5.4.0}
 @item 5.4.0
     Even slightly less allocations in Streebog.