diff --git a/Makefile b/Makefile
index b99682b..6b1ab7a 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-PROTO_VERSION=v0.7.4
+PROTO_VERSION=v0.7.5
 PROTO_URL=https://github.com/nspcc-dev/neofs-api/archive/$(PROTO_VERSION).tar.gz
 
 B=\033[0;1m
diff --git a/docs/service.md b/docs/service.md
index 9ed548e..0765f04 100644
--- a/docs/service.md
+++ b/docs/service.md
@@ -132,6 +132,7 @@ User token granting rights for object manipulation
 | Address | [refs.Address](#refs.Address) |  | Address is an object address for which token is issued |
 | Lifetime | [TokenLifetime](#service.TokenLifetime) |  | Lifetime is a lifetime of the session |
 | SessionKey | [bytes](#bytes) |  | SessionKey is a public key of session key |
+| OwnerKey | [bytes](#bytes) |  | OwnerKey is a public key of the token owner |
 
 
 <a name="service.TokenLifetime"></a>
diff --git a/service/verify.pb.go b/service/verify.pb.go
index 3dadf0b..d198302 100644
Binary files a/service/verify.pb.go and b/service/verify.pb.go differ
diff --git a/service/verify.proto b/service/verify.proto
index ed360be..a6619a6 100644
--- a/service/verify.proto
+++ b/service/verify.proto
@@ -63,6 +63,9 @@ message Token {
 
         // SessionKey is a public key of session key
         bytes SessionKey = 6;
+
+        // OwnerKey is a public key of the token owner
+        bytes OwnerKey = 7;
     }
 
     // TokenInfo is a grouped information about token