diff --git a/Readme.md b/Readme.md
--- a/Readme.md
+++ b/Readme.md
@@ -1,3 +1,7 @@
+[![Hackage](https://img.shields.io/hackage/v/co-log-json.svg)](https://hackage.haskell.org/package/co-log-json)
+[![MPL-2.0 license](https://img.shields.io/badge/license-MPL--2.0-blue.svg)](https://github.com/qnikst/co-log-json/blob/master/LICENSE)
+![Haskell CI](https://github.com/cheopslab/cheops-logger/workflows/Haskell%20CI/badge.svg)
+
 # co-log-json
 
 `co-log-json` allows writing structured logs in your application.
diff --git a/co-log-json.cabal b/co-log-json.cabal
--- a/co-log-json.cabal
+++ b/co-log-json.cabal
@@ -1,21 +1,21 @@
-cabal-version:       3.0
+cabal-version:       2.4
 name:                co-log-json
-version:             0.0.1.0
+version:             0.1.0.0
 synopsis:            Structured messages support in co-log ecosystem.
 description:
 
    The library implements of a very simple approach to structured logging, that
    ca be used with the [co-log](https://hackage.haskell.org/package/co-log)
    ecosystem or on it's own see [cheops-logger](https://github.com/cheopslab/cheops-logger).
-
+   .
    It provides:
-
+   .
      * "Colog.Json" — API for adding structured context to the log messages
      * "Colog.Json.Action" — efficient function for dumping logs in the 
        following format.
-
+   .
    By default it emits logs in the following format (pretty-printed for convenience):
-
+   .
    @
    { "namespace":"server.package" -- namespace for the component
    , "severity": \"DEBUG\"          -- severity level
@@ -30,7 +30,7 @@
       } 
    }
    @
-
+   .
    The most interesting thing here is the field @data@ that can be used by the user
    to add additional structured info to the message.
 
@@ -39,12 +39,17 @@
 license-file:        LICENSE
 author:              Alexander Vershilov
 maintainer:          alexander.vershilov@sirius.online
-copyright:           (C) 2019-2020 Фонд Талант и Успех
+copyright:           (C) 2019-2023 Фонд Талант и Успех
 category:            System
 extra-source-files: 
   CHANGELOG.md
   Readme.md
+tested-with:
+   GHC ==9.2.2
+    || ==9.0.2
+    || ==8.10.7
 
+
 library
   exposed-modules:
     Colog.Json
@@ -65,12 +70,12 @@
     FlexibleContexts
   build-depends:
       base >=4.11 && <5
-    , aeson ^>= 1.5
-    , bytestring ^>=0.10
-    , text ^>=1.2
+    , aeson >= 2.0 && < 2.2
+    , bytestring >=0.10 && < 0.12
+    , text >=1.2 && < 2.1
     , containers ^>=0.6
-    , co-log-core ^>=0.2
-    , string-conv ^>=0.1
+    , co-log-core >=0.2 && < 0.4
+    , string-conv >=0.1 && < 0.3
   hs-source-dirs:      src
   ghc-options:         -Wall
   default-language:    Haskell2010
diff --git a/src/Colog/Json.hs b/src/Colog/Json.hs
--- a/src/Colog/Json.hs
+++ b/src/Colog/Json.hs
@@ -185,7 +185,7 @@
   logErr, logAlert, logCrit, logEmergency
   :: MonadIO m => LoggerEnv -> LogStr -> m ()
 logDebug  x = logSay x DebugS
-logNotice x = logSay x InfoS
+logNotice x = logSay x NoticeS
 logInfo x = logSay x InfoS
 logWarn x = logSay x WarningS
 logErr x = logSay x ErrorS
diff --git a/src/Colog/Json/Action.hs b/src/Colog/Json/Action.hs
--- a/src/Colog/Json/Action.hs
+++ b/src/Colog/Json/Action.hs
@@ -10,6 +10,7 @@
 import Colog.Json.Internal.Structured
 import Control.Exception
 import Data.Aeson.Encoding as Aeson
+import qualified Data.Aeson.Key as Aeson.Key
 import qualified Data.ByteString.Builder as Builder
 import Data.Coerce
 import Data.Foldable
@@ -102,7 +103,7 @@
      | Segment tm <- toList attributes
      ]
   user_data = fold <$> NE.nonEmpty
-    [ pair key attributeValue
+    [ pair (Aeson.Key.fromText key) attributeValue
     | Attr key attributeValue <- toList attributes
     ]