diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7443632..992ba8d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,16 @@
 # Changelog
 This is the changelog for NeoFS Proto
 
+## [0.3.1] - 2020-02-07
+### Fixed
+- bug with `tz.Concat`
+
+### Updated
+- dependencies:
+    - github.com/nspcc-dev/tzhash `v1.3.0 => v1.4.0`
+    - github.com/prometheus/client_golang `v1.4.0 => v1.4.1`
+    - google.golang.org/grpc `v1.27.0 => v1.27.1`
+
 ## [0.3.0] - 2020-02-05
 
 ### Updated
@@ -166,3 +176,4 @@ Initial public release
 [0.2.13]: https://github.com/nspcc-dev/neofs-api/compare/v0.2.12...v0.2.13
 [0.2.14]: https://github.com/nspcc-dev/neofs-api/compare/v0.2.13...v0.2.14
 [0.3.0]: https://github.com/nspcc-dev/neofs-api/compare/v0.2.14...v0.3.0
+[0.3.1]: https://github.com/nspcc-dev/neofs-api/compare/v0.3.0...v0.3.1
diff --git a/go.sum b/go.sum
index cec7f5d..bb83093 100644
--- a/go.sum
+++ b/go.sum
@@ -133,8 +133,7 @@ github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZN
 github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXPKyh/dDVn+NZz0KFw=
 github.com/prometheus/client_golang v0.9.3/go.mod h1:/TN21ttK/J9q6uSwhBd54HahCDft0ttaMvbicHlPoso=
 github.com/prometheus/client_golang v1.0.0/go.mod h1:db9x61etRT2tGnBNRi70OPL5FsnadC4Ky3P0J6CfImo=
-github.com/prometheus/client_golang v1.4.0 h1:YVIb/fVcOTMSqtqZWSKnHpSLBxu8DKgxq8z6RuBZwqI=
-github.com/prometheus/client_golang v1.4.0/go.mod h1:e9GMxYsXl05ICDXkRhurwBS4Q3OK1iX/F2sw+iXX5zU=
+github.com/prometheus/client_golang v1.4.1 h1:FFSuS004yOQEtDdTq+TAOLP5xUq63KqAFYyOi8zA+Y8=
 github.com/prometheus/client_golang v1.4.1/go.mod h1:e9GMxYsXl05ICDXkRhurwBS4Q3OK1iX/F2sw+iXX5zU=
 github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
 github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=