diff --git a/katip-raven.cabal b/katip-raven.cabal
--- a/katip-raven.cabal
+++ b/katip-raven.cabal
@@ -1,15 +1,15 @@
 cabal-version:       2.4
 
 name:                katip-raven
-version: 0.1.0.0
+version:             0.1.1.0
 synopsis:            Katip scribe for raven (https://sentry.io)
 -- description:
-homepage:            https://github.com/hercules-ci/katip-raven
+homepage:            https://github.com/cachix/katip-raven
 -- bug-reports:
 license:             Apache-2.0
 license-file:        LICENSE
 author:              Domen Kozar
-maintainer:          domen@hercules-ci.com
+maintainer:          domen@cachix.org
 -- copyright:
 category:            Web
 extra-source-files:  CHANGELOG.md
@@ -17,11 +17,11 @@
 library
   exposed-modules:     Katip.Scribes.Raven
   default-extensions:  Rank2Types, OverloadedStrings
-  build-depends:       base >=4.11 && <4.14
-                     , aeson
+  build-depends:       base >=4.11 && <5
+                     , aeson >= 2.0.0.0
                      , text
                      , katip
-                     , raven-haskell >= 0.1.4.0
+                     , raven-haskell >= 0.1.4.1
                      , string-conv
                      , unordered-containers
   hs-source-dirs:      src
diff --git a/src/Katip/Scribes/Raven.hs b/src/Katip/Scribes/Raven.hs
--- a/src/Katip/Scribes/Raven.hs
+++ b/src/Katip/Scribes/Raven.hs
@@ -12,7 +12,7 @@
 import qualified Katip.Core
 import qualified System.Log.Raven as Raven
 import qualified System.Log.Raven.Types as Raven
-
+import Data.Aeson.KeyMap (fromHashMapText, toHashMapText)
 
 mkRavenScribe :: Raven.SentryService -> Katip.PermitFunc -> Katip.Verbosity -> IO Katip.Scribe
 mkRavenScribe sentryService permitItem verbosity = return $
@@ -34,7 +34,7 @@
             { Raven.srEnvironment = Just $ toS $ Katip.getEnvironment $ Katip._itemEnv item
             , Raven.srTimestamp = Katip._itemTime item
             -- add katip context as raven extras
-            , Raven.srExtra = convertExtra $ Katip.payloadObject verbosity (Katip._itemPayload item) <> katipAttrs
+            , Raven.srExtra = convertExtra $ toHashMapText $ Katip.payloadObject verbosity (Katip._itemPayload item) <> fromHashMapText katipAttrs
             }
 
     convertExtra :: HM.HashMap T.Text Aeson.Value -> HM.HashMap String Aeson.Value