diff --git a/wai-middleware-rollbar.cabal b/wai-middleware-rollbar.cabal
--- a/wai-middleware-rollbar.cabal
+++ b/wai-middleware-rollbar.cabal
@@ -1,5 +1,5 @@
 name:                wai-middleware-rollbar
-version:             0.8.3
+version:             0.8.4
 synopsis:            Middleware that communicates to Rollbar.
 description:         Middleware that communicates to Rollbar.
 homepage:            https://github.com/joneshf/wai-middleware-rollbar#readme
@@ -69,7 +69,7 @@
                      , containers >= 0.5 && < 0.6
                      , hspec >= 2.4 && < 2.5
                      , hspec-golden-aeson >= 0.2 && < 0.6
-                     , lens >= 4.15 && < 4.16
+                     , lens >= 4.15 && < 4.17
                      , lens-aeson >= 1.0 && < 1.1
                      , text
                      , wai-middleware-rollbar