diff --git a/katip-rollbar.cabal b/katip-rollbar.cabal
--- a/katip-rollbar.cabal
+++ b/katip-rollbar.cabal
@@ -2,10 +2,10 @@
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: a493aa087b8743c3c495d0201c9a4a7ea6b7ee372660f60b38801435694ec71d
+-- hash: 5663ff890d83d99fb4280f768605951719d72a9221100e15e0683dd3465354a3
 
 name:           katip-rollbar
-version:        0.3.0.0
+version:        0.3.0.1
 synopsis:       Katip scribe that logs to Rollbar
 category:       Logging
 homepage:       https://github.com/joneshf/katip-rollbar#readme
diff --git a/src/Katip/Scribes/Rollbar.hs b/src/Katip/Scribes/Rollbar.hs
--- a/src/Katip/Scribes/Rollbar.hs
+++ b/src/Katip/Scribes/Rollbar.hs
@@ -76,16 +76,16 @@
 workerSize :: Int
 workerSize = 10
 
-mkRollbarScribe ::
-  RemoveHeaders headers =>
-  proxy headers ->
-  AccessToken ->
-  Maybe Branch ->
-  Maybe CodeVersion ->
-  Manager -> -- ^ Must support TLS
-  Severity ->
-  Verbosity ->
-  IO Scribe
+mkRollbarScribe
+  :: RemoveHeaders headers
+  => proxy headers
+  -> AccessToken
+  -> Maybe Branch
+  -> Maybe CodeVersion
+  -> Manager -- ^ Must support TLS
+  -> Severity
+  -> Verbosity
+  -> IO Scribe
 mkRollbarScribe proxy accessToken branch codeVersion manager severity verbosity = do
   queue <- newTBMQueueIO queueSize
   workers <- replicateM workerSize (async $ mkWorker proxy manager queue)