diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -8,9 +8,15 @@
 
 ## Tests
 To run tests `wai-session-redis` must have access to running `redis` instance.
-### Using docker
+### Using docker and stack
 ```bash
 docker run --name redis-session-tests -p 6379:6379 -d redis
 stack test
 docker rm -f redis-session-tests
+```
+
+### Using nix
+Nix takes care of running `redis` instance and testing `wai-session-redis`.
+```bash
+nix-build
 ```
diff --git a/wai-session-redis.cabal b/wai-session-redis.cabal
--- a/wai-session-redis.cabal
+++ b/wai-session-redis.cabal
@@ -4,10 +4,10 @@
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: 963fcb2dd15f642fd86c4c482209668adb39ffddf9c09d0a0907a8d71088ae86
+-- hash: 91266d9b2afdd8999d2fb3b7ea42af1786d212356314d4c91028192a1b1ff2cb
 
 name:           wai-session-redis
-version:        0.1.0.3
+version:        0.1.0.4
 synopsis:       Simple Redis backed wai-session backend.
 description:    Simple Redis backed wai-session backend. This module allows you to store session data of wai-sessions in a Redis database.
 category:       Web
@@ -79,7 +79,7 @@
     , cereal >=0.5.8 && <0.6
     , data-default ==0.7.*
     , hedis >=0.14 && <0.16
-    , hspec <2.9
+    , hspec <2.10
     , vault >=0.3.1 && <0.4
     , wai ==3.2.*
     , wai-session >=0.3.3 && <0.4